155234432 has 16 divisors (see below), whose sum is σ = 309256350. Its totient is φ = 77617152.

The previous prime is 155234411. The next prime is 155234437. The reversal of 155234432 is 234432551.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 141514816 + 13719616 = 11896^2 + 3704^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 155234395 and 155234404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155234437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606257 + ... + 606512.

Almost surely, 2^155234432 is an apocalyptic number.

It is an amenable number.

155234432 is a deficient number, since it is larger than the sum of its proper divisors (154021918).

155234432 is an equidigital number, since it uses as much as digits as its factorization.

155234432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212783 (or 1212771 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 155234432 is about 12459.3110563947. The cubic root of 155234432 is about 537.4392151922.

Adding to 155234432 its reverse (234432551), we get a palindrome (389666983).

The spelling of 155234432 in words is "one hundred fifty-five million, two hundred thirty-four thousand, four hundred thirty-two".