155609396 has 12 divisors (see below), whose sum is σ = 275597952. Its totient is φ = 76867128.

The previous prime is 155609357. The next prime is 155609401. The reversal of 155609396 is 693906551.

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, 234020 + ... + 234683.

It is an arithmetic number, because the mean of its divisors is an integer number (22966496).

Almost surely, 2^155609396 is an apocalyptic number.

It is an amenable number.

155609396 is a deficient number, since it is larger than the sum of its proper divisors (119988556).

155609396 is a wasteful number, since it uses less digits than its factorization.

155609396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468790 (or 468788 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 44.

The square root of 155609396 is about 12474.3495221194. The cubic root of 155609396 is about 537.8715898857.

The spelling of 155609396 in words is "one hundred fifty-five million, six hundred nine thousand, three hundred ninety-six".