149364257 has 8 divisors (see below), whose sum is σ = 171931200. Its totient is φ = 127104624.

The previous prime is 149364251. The next prime is 149364269. The reversal of 149364257 is 752463941.

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

It is a cyclic number.

It is not a de Polignac number, because 149364257 - 2¹² = 149360161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149364251) 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, 75782 + ... + 77727.

It is an arithmetic number, because the mean of its divisors is an integer number (21491400).

Almost surely, 2^149364257 is an apocalyptic number.

It is an amenable number.

149364257 is a deficient number, since it is larger than the sum of its proper divisors (22566943).

149364257 is a wasteful number, since it uses less digits than its factorization.

149364257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153655.

The product of its digits is 181440, while the sum is 41.

The square root of 149364257 is about 12221.4670559635. The cubic root of 149364257 is about 530.5775796678.

The spelling of 149364257 in words is "one hundred forty-nine million, three hundred sixty-four thousand, two hundred fifty-seven".