231631652 has 24 divisors (see below), whose sum is σ = 465674496. Its totient is φ = 98754048.

The previous prime is 231631637. The next prime is 231631691. The reversal of 231631652 is 256136132.

231631652 is a modest number, since divided by 31652 gives 2316 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16028 + ... + 26835.

It is an arithmetic number, because the mean of its divisors is an integer number (19403104).

Almost surely, 2^231631652 is an apocalyptic number.

It is an amenable number.

231631652 is an abundant number, since it is smaller than the sum of its proper divisors (234042844).

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

231631652 is a wasteful number, since it uses less digits than its factorization.

231631652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43067 (or 43065 counting only the distinct ones).

The product of its digits is 6480, while the sum is 29.

The square root of 231631652 is about 15219.4497929459. The cubic root of 231631652 is about 614.1379969724.

Adding to 231631652 its reverse (256136132), we get a palindrome (487767784).

The spelling of 231631652 in words is "two hundred thirty-one million, six hundred thirty-one thousand, six hundred fifty-two".