155432 has 8 divisors (see below), whose sum is σ = 291450. Its totient is φ = 77712.

The previous prime is 155423. The next prime is 155443. The reversal of 155432 is 234551.

155432 is nontrivially palindromic in base 14.

155432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 155236 + 196 = 394^2 + 14^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

155432 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9707 + ... + 9722.

2¹⁵⁵⁴³² is an apocalyptic number.

It is an amenable number.

155432 is a deficient number, since it is larger than the sum of its proper divisors (136018).

155432 is a wasteful number, since it uses less digits than its factorization.

155432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19435 (or 19431 counting only the distinct ones).

The product of its digits is 600, while the sum is 20.

The square root of 155432 is about 394.2486525025. The cubic root of 155432 is about 53.7667119478.

Adding to 155432 its reverse (234551), we get a palindrome (389983).

The spelling of 155432 in words is "one hundred fifty-five thousand, four hundred thirty-two".