155023604 has 24 divisors (see below), whose sum is σ = 274129128. Its totient is φ = 76705920.

The previous prime is 155023597. The next prime is 155023613. The reversal of 155023604 is 406320551.

It can be written as a sum of positive squares in 4 ways, for example, as 22543504 + 132480100 = 4748^2 + 11510^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200162 + ... + 200934.

It is an arithmetic number, because the mean of its divisors is an integer number (11422047).

Almost surely, 2^155023604 is an apocalyptic number.

It is an amenable number.

155023604 is a deficient number, since it is larger than the sum of its proper divisors (119105524).

155023604 is a wasteful number, since it uses less digits than its factorization.

155023604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235 (or 1233 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 155023604 is about 12450.8475213537. The cubic root of 155023604 is about 537.1958014785.

The spelling of 155023604 in words is "one hundred fifty-five million, twenty-three thousand, six hundred four".