155074072 has 16 divisors (see below), whose sum is σ = 291517200. Its totient is φ = 77336160.

The previous prime is 155074069. The next prime is 155074111. The reversal of 155074072 is 270470551.

155074072 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 2×155074072² = 48095935613322368, which contains 22 as substring.

It is a congruent 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, 21804 + ... + 28027.

It is an arithmetic number, because the mean of its divisors is an integer number (18219825).

Almost surely, 2^155074072 is an apocalyptic number.

It is an amenable number.

155074072 is a deficient number, since it is larger than the sum of its proper divisors (136443128).

155074072 is a wasteful number, since it uses less digits than its factorization.

155074072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50226 (or 50222 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 155074072 is about 12452.8740457775. The cubic root of 155074072 is about 537.2540899273.

The spelling of 155074072 in words is "one hundred fifty-five million, seventy-four thousand, seventy-two".