155970224 has 20 divisors (see below), whose sum is σ = 304575744. Its totient is φ = 77370048.

The previous prime is 155970203. The next prime is 155970251. The reversal of 155970224 is 422079551.

155970224 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 2×155970224² = 48653421549220352, which contains 22 as substring.

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, 36347 + ... + 40410.

Almost surely, 2^155970224 is an apocalyptic number.

It is an amenable number.

155970224 is a deficient number, since it is larger than the sum of its proper divisors (148605520).

155970224 is a wasteful number, since it uses less digits than its factorization.

155970224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76892 (or 76886 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 155970224 is about 12488.8039459349. The cubic root of 155970224 is about 538.2870089143.

The spelling of 155970224 in words is "one hundred fifty-five million, nine hundred seventy thousand, two hundred twenty-four".