155251232 has 24 divisors (see below), whose sum is σ = 306406800. Its totient is φ = 77433664.

The previous prime is 155251231. The next prime is 155251249. The reversal of 155251232 is 232152551.

It is not an unprimeable number, because it can be changed into a prime (155251231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7619 + ... + 19197.

It is an arithmetic number, because the mean of its divisors is an integer number (12766950).

Almost surely, 2^155251232 is an apocalyptic number.

It is an amenable number.

155251232 is a deficient number, since it is larger than the sum of its proper divisors (151155568).

155251232 is a wasteful number, since it uses less digits than its factorization.

155251232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12008 (or 12000 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 155251232 is about 12459.9852327360. The cubic root of 155251232 is about 537.4586023282.

The spelling of 155251232 in words is "one hundred fifty-five million, two hundred fifty-one thousand, two hundred thirty-two".