154164556 has 48 divisors (see below), whose sum is σ = 349538560. Its totient is φ = 57775680.

The previous prime is 154164541. The next prime is 154164557. The reversal of 154164556 is 655461451.

It is not an unprimeable number, because it can be changed into a prime (154164557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4230 + ... + 18061.

Almost surely, 2^154164556 is an apocalyptic number.

It is an amenable number.

154164556 is an abundant number, since it is smaller than the sum of its proper divisors (195374004).

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

154164556 is a wasteful number, since it uses less digits than its factorization.

154164556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22334 (or 22332 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 154164556 is about 12416.3020259657. The cubic root of 154164556 is about 536.2016904515.

The spelling of 154164556 in words is "one hundred fifty-four million, one hundred sixty-four thousand, five hundred fifty-six".