154640552 has 32 divisors (see below), whose sum is σ = 317325600. Its totient is φ = 70065600.

The previous prime is 154640543. The next prime is 154640567. The reversal of 154640552 is 255046451.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

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, 26474 + ... + 31782.

It is an arithmetic number, because the mean of its divisors is an integer number (9916425).

Almost surely, 2^154640552 is an apocalyptic number.

It is an amenable number.

154640552 is an abundant number, since it is smaller than the sum of its proper divisors (162685048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154640552 is a wasteful number, since it uses less digits than its factorization.

154640552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5657 (or 5653 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 154640552 is about 12435.4554399909. The cubic root of 154640552 is about 536.7529793576.

The spelling of 154640552 in words is "one hundred fifty-four million, six hundred forty thousand, five hundred fifty-two".