155072 has 14 divisors (see below), whose sum is σ = 307848. Its totient is φ = 77504.

The previous prime is 155069. The next prime is 155081. The reversal of 155072 is 270551.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1148 + ... + 1275.

2¹⁵⁵⁰⁷² is an apocalyptic number.

It is an amenable number.

155072 is a deficient number, since it is larger than the sum of its proper divisors (152776).

155072 is an equidigital number, since it uses as much as digits as its factorization.

155072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435 (or 2425 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 155072 is about 393.7918231756. The cubic root of 155072 is about 53.7251697102.

The spelling of 155072 in words is "one hundred fifty-five thousand, seventy-two".