149608557 has 24 divisors (see below), whose sum is σ = 247293696. Its totient is φ = 85379616.

The previous prime is 149608553. The next prime is 149608621. The reversal of 149608557 is 755806941.

149608557 is a `hidden beast` number, since 1 + 4 + 96 + 0 + 8 + 557 = 666.

It is not a de Polignac number, because 149608557 - 2² = 149608553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149608553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92883 + ... + 94479.

It is an arithmetic number, because the mean of its divisors is an integer number (10303904).

Almost surely, 2^149608557 is an apocalyptic number.

It is an amenable number.

149608557 is a deficient number, since it is larger than the sum of its proper divisors (97685139).

149608557 is a wasteful number, since it uses less digits than its factorization.

149608557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097 (or 3094 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 149608557 is about 12231.4576809144. The cubic root of 149608557 is about 530.8666927855.

The spelling of 149608557 in words is "one hundred forty-nine million, six hundred eight thousand, five hundred fifty-seven".