232139550 has 24 divisors (see below), whose sum is σ = 575706456. Its totient is φ = 61903840.

The previous prime is 232139497. The next prime is 232139561. The reversal of 232139550 is 55931232.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 773649 + ... + 773948.

It is an arithmetic number, because the mean of its divisors is an integer number (23987769).

Almost surely, 2^232139550 is an apocalyptic number.

232139550 is an abundant number, since it is smaller than the sum of its proper divisors (343566906).

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

232139550 is a wasteful number, since it uses less digits than its factorization.

232139550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547612 (or 1547607 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 232139550 is about 15236.1264762406. The cubic root of 232139550 is about 614.5865421135.

The spelling of 232139550 in words is "two hundred thirty-two million, one hundred thirty-nine thousand, five hundred fifty".