155272 has 16 divisors (see below), whose sum is σ = 313740. Its totient is φ = 71616.

The previous prime is 155269. The next prime is 155291. The reversal of 155272 is 272551.

It can be written as a sum of positive squares in 2 ways, for example, as 155236 + 36 = 394^2 + 6^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643 + ... + 850.

2¹⁵⁵²⁷² is an apocalyptic number.

It is an amenable number.

155272 is an abundant number, since it is smaller than the sum of its proper divisors (158468).

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

155272 is a wasteful number, since it uses less digits than its factorization.

155272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512 (or 1508 counting only the distinct ones).

The product of its digits is 700, while the sum is 22.

The square root of 155272 is about 394.0456826308. The cubic root of 155272 is about 53.7482566588.

The spelling of 155272 in words is "one hundred fifty-five thousand, two hundred seventy-two".