155332432 has 20 divisors (see below), whose sum is σ = 314042400. Its totient is φ = 74289248.

The previous prime is 155332423. The next prime is 155332433. The reversal of 155332432 is 234233551.

It is a self number, because there is not a number n which added to its sum of digits gives 155332432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155332433) by changing a digit.

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, 210682 + ... + 211417.

It is an arithmetic number, because the mean of its divisors is an integer number (15702120).

Almost surely, 2^155332432 is an apocalyptic number.

It is an amenable number.

155332432 is an abundant number, since it is smaller than the sum of its proper divisors (158709968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155332432 is a wasteful number, since it uses less digits than its factorization.

155332432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422130 (or 422124 counting only the distinct ones).

The product of its digits is 10800, while the sum is 28.

The square root of 155332432 is about 12463.2432376168. The cubic root of 155332432 is about 537.5522871074.

Adding to 155332432 its reverse (234233551), we get a palindrome (389565983).

The spelling of 155332432 in words is "one hundred fifty-five million, three hundred thirty-two thousand, four hundred thirty-two".