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147899 = 1311129

147899 has 4 divisors (see below), whose sum is σ = 149160. Its totient is φ = 146640.

The previous prime is 147881. The next prime is 147919. The reversal of 147899 is 998741.

147899 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 an emirpimes, since its reverse is a distinct semiprime: 998741 = 3726993.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-147899 is a prime.

It is a super-2 number, since 2×1478992 = 43748228402, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 147899.

It is not an unprimeable number, because it can be changed into a prime (147859) 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, 434 + ... + 695.

It is an arithmetic number, because the mean of its divisors is an integer number (37290).

2147899 is an apocalyptic number.

147899 is a deficient number, since it is larger than the sum of its proper divisors (1261).

147899 is a wasteful number, since it uses less digits than its factorization.

147899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260.

The product of its digits is 18144, while the sum is 38.

The square root of 147899 is about 384.5763903310. The cubic root of 147899 is about 52.8836894027.

The spelling of 147899 in words is "one hundred forty-seven thousand, eight hundred ninety-nine".

Divisors: 1 131 1129 147899