153172 has 12 divisors (see below), whose sum is σ = 270900. Its totient is φ = 75776.

The previous prime is 153151. The next prime is 153191. The reversal of 153172 is 271351.

It can be written as a sum of positive squares in 2 ways, for example, as 93636 + 59536 = 306^2 + 244^2 .

It is a super-3 number, since 3×153172³ = 10781008884433344, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

153172 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468 + ... + 724.

It is an arithmetic number, because the mean of its divisors is an integer number (22575).

2¹⁵³¹⁷² is an apocalyptic number.

It is an amenable number.

153172 is a deficient number, since it is larger than the sum of its proper divisors (117728).

153172 is a wasteful number, since it uses less digits than its factorization.

153172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 408 counting only the distinct ones).

The product of its digits is 210, while the sum is 19.

The square root of 153172 is about 391.3719458520. The cubic root of 153172 is about 53.5048471458.

It can be divided in two parts, 153 and 172, that added together give a triangular number (325 = T₂₅).

The spelling of 153172 in words is "one hundred fifty-three thousand, one hundred seventy-two".