155974648 has 32 divisors (see below), whose sum is σ = 309258000. Its totient is φ = 73543680.

The previous prime is 155974639. The next prime is 155974699. The reversal of 155974648 is 846479551.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32568 + ... + 37048.

Almost surely, 2^155974648 is an apocalyptic number.

It is an amenable number.

155974648 is a deficient number, since it is larger than the sum of its proper divisors (153283352).

155974648 is a wasteful number, since it uses less digits than its factorization.

155974648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4735 (or 4731 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 49.

The square root of 155974648 is about 12488.9810633214. The cubic root of 155974648 is about 538.2920982601.

The spelling of 155974648 in words is "one hundred fifty-five million, nine hundred seventy-four thousand, six hundred forty-eight".