154955172 has 48 divisors (see below), whose sum is σ = 367476480. Its totient is φ = 50813952.

The previous prime is 154955161. The next prime is 154955179. The reversal of 154955172 is 271559451.

154955172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×154955172² = 48022210659099168, which contains 22 as substring.

Its product of digits (63000) is a multiple of the sum of its prime factors (900).

It is a self number, because there is not a number n which added to its sum of digits gives 154955172.

It is not an unprimeable number, because it can be changed into a prime (154955179) 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, 277918 + ... + 278474.

It is an arithmetic number, because the mean of its divisors is an integer number (7655760).

Almost surely, 2^154955172 is an apocalyptic number.

154955172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

154955172 is an abundant number, since it is smaller than the sum of its proper divisors (212521308).

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

154955172 is a wasteful number, since it uses less digits than its factorization.

154955172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900 (or 898 counting only the distinct ones).

The product of its digits is 63000, while the sum is 39.

The square root of 154955172 is about 12448.0991319960. The cubic root of 154955172 is about 537.1167451441.

The spelling of 154955172 in words is "one hundred fifty-four million, nine hundred fifty-five thousand, one hundred seventy-two".