155243932 has 24 divisors (see below), whose sum is σ = 294353136. Its totient is φ = 71355648.

The previous prime is 155243929. The next prime is 155243981. The reversal of 155243932 is 239342551.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 23623 + ... + 29470.

It is an arithmetic number, because the mean of its divisors is an integer number (12264714).

Almost surely, 2^155243932 is an apocalyptic number.

It is an amenable number.

155243932 is a deficient number, since it is larger than the sum of its proper divisors (139109204).

155243932 is a wasteful number, since it uses less digits than its factorization.

155243932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53157 (or 53155 counting only the distinct ones).

The product of its digits is 32400, while the sum is 34.

The square root of 155243932 is about 12459.6922915456. The cubic root of 155243932 is about 537.4501783278.

The spelling of 155243932 in words is "one hundred fifty-five million, two hundred forty-three thousand, nine hundred thirty-two".