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149554137 = 3311608109
BaseRepresentation
bin10001110101000…
…00001111011001
3101102102010201010
420322200033121
5301241213022
622501244133
73464121615
oct1072401731
9342363633
10149554137
1177468267
1242103649
1324ca3c95
1415c10345
15d1e250c
hex8ea03d9

149554137 has 8 divisors (see below), whose sum is σ = 205838080. Its totient is φ = 96486480.

The previous prime is 149554123. The next prime is 149554159. The reversal of 149554137 is 731455941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149554137 - 24 = 149554121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149554095 and 149554104.

It is not an unprimeable number, because it can be changed into a prime (149554837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803962 + ... + 804147.

It is an arithmetic number, because the mean of its divisors is an integer number (25729760).

Almost surely, 2149554137 is an apocalyptic number.

It is an amenable number.

149554137 is a deficient number, since it is larger than the sum of its proper divisors (56283943).

149554137 is a wasteful number, since it uses less digits than its factorization.

149554137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608143.

The product of its digits is 75600, while the sum is 39.

The square root of 149554137 is about 12229.2328868167. The cubic root of 149554137 is about 530.8023175261.

The spelling of 149554137 in words is "one hundred forty-nine million, five hundred fifty-four thousand, one hundred thirty-seven".

Divisors: 1 3 31 93 1608109 4824327 49851379 149554137