155727932 has 12 divisors (see below), whose sum is σ = 273031416. Its totient is φ = 77718960.

The previous prime is 155727919. The next prime is 155727947. The reversal of 155727932 is 239727551.

It is a self number, because there is not a number n which added to its sum of digits gives 155727932.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33818 + ... + 38145.

It is an arithmetic number, because the mean of its divisors is an integer number (22752618).

Almost surely, 2^155727932 is an apocalyptic number.

It is an amenable number.

155727932 is a deficient number, since it is larger than the sum of its proper divisors (117303484).

155727932 is a wasteful number, since it uses less digits than its factorization.

155727932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72508 (or 72506 counting only the distinct ones).

The product of its digits is 132300, while the sum is 41.

The square root of 155727932 is about 12479.0998072778. The cubic root of 155727932 is about 538.0081304078.

The spelling of 155727932 in words is "one hundred fifty-five million, seven hundred twenty-seven thousand, nine hundred thirty-two".