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149133937 = 1311138427
BaseRepresentation
bin10001110001110…
…01101001110001
3101101121210022011
420320321221301
5301134241222
622444242521
73460421551
oct1070715161
9341553264
10149133937
1177200597
1241b40441
1324b87944
1415b41161
15d15cc77
hex8e39a71

149133937 has 4 divisors (see below), whose sum is σ = 150272496. Its totient is φ = 147995380.

The previous prime is 149133923. The next prime is 149133947. The reversal of 149133937 is 739331941.

149133937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 739331941 = 2332144867.

It is a cyclic number.

It is not a de Polignac number, because 149133937 - 211 = 149131889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149133937.

It is not an unprimeable number, because it can be changed into a prime (149133947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569083 + ... + 569344.

It is an arithmetic number, because the mean of its divisors is an integer number (37568124).

Almost surely, 2149133937 is an apocalyptic number.

It is an amenable number.

149133937 is a deficient number, since it is larger than the sum of its proper divisors (1138559).

149133937 is a wasteful number, since it uses less digits than its factorization.

149133937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138558.

The product of its digits is 61236, while the sum is 40.

The square root of 149133937 is about 12212.0406566634. The cubic root of 149133937 is about 530.3047221210.

The spelling of 149133937 in words is "one hundred forty-nine million, one hundred thirty-three thousand, nine hundred thirty-seven".

Divisors: 1 131 1138427 149133937