232135251 has 12 divisors (see below), whose sum is σ = 323558088. Its totient is φ = 148027264.

The previous prime is 232135247. The next prime is 232135339. The reversal of 232135251 is 152531232.

It is a happy number.

It is not a de Polignac number, because 232135251 - 2² = 232135247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (232135451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71550 + ... + 74723.

It is an arithmetic number, because the mean of its divisors is an integer number (26963174).

Almost surely, 2^232135251 is an apocalyptic number.

232135251 is a deficient number, since it is larger than the sum of its proper divisors (91422837).

232135251 is a wasteful number, since it uses less digits than its factorization.

232135251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146322 (or 146299 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 232135251 is about 15235.9853964225. The cubic root of 232135251 is about 614.5827482406.

Adding to 232135251 its reverse (152531232), we get a palindrome (384666483).

The spelling of 232135251 in words is "two hundred thirty-two million, one hundred thirty-five thousand, two hundred fifty-one".