155612 has 6 divisors (see below), whose sum is σ = 272328. Its totient is φ = 77804.

The previous prime is 155609. The next prime is 155621. The reversal of 155612 is 216551.

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, 19448 + ... + 19455.

It is an arithmetic number, because the mean of its divisors is an integer number (45388).

2¹⁵⁵⁶¹² is an apocalyptic number.

It is an amenable number.

155612 is a deficient number, since it is larger than the sum of its proper divisors (116716).

155612 is a wasteful number, since it uses less digits than its factorization.

155612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38907 (or 38905 counting only the distinct ones).

The product of its digits is 300, while the sum is 20.

The square root of 155612 is about 394.4768687769. The cubic root of 155612 is about 53.7874590154.

It can be divided in two parts, 155 and 612, that added together give a palindrome (767).

The spelling of 155612 in words is "one hundred fifty-five thousand, six hundred twelve".