232132520 has 16 divisors (see below), whose sum is σ = 522298260. Its totient is φ = 92852992.

The previous prime is 232132517. The next prime is 232132547. The reversal of 232132520 is 25231232.

It can be written as a sum of positive squares in 2 ways, for example, as 226382116 + 5750404 = 15046^2 + 2398^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 232132492 and 232132501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2901617 + ... + 2901696.

Almost surely, 2^232132520 is an apocalyptic number.

232132520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232132520 is an abundant number, since it is smaller than the sum of its proper divisors (290165740).

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

232132520 is a wasteful number, since it uses less digits than its factorization.

232132520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5803324 (or 5803320 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 232132520 is about 15235.8957728123. The cubic root of 232132520 is about 614.5803381054.

Adding to 232132520 its reverse (25231232), we get a palindrome (257363752).

The spelling of 232132520 in words is "two hundred thirty-two million, one hundred thirty-two thousand, five hundred twenty".