231612646 has 8 divisors (see below), whose sum is σ = 347709024. Its totient is φ = 115709640.

The previous prime is 231612631. The next prime is 231612653. The reversal of 231612646 is 646216132.

231612646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 45310 + ... + 50161.

It is an arithmetic number, because the mean of its divisors is an integer number (43463628).

Almost surely, 2^231612646 is an apocalyptic number.

231612646 is a deficient number, since it is larger than the sum of its proper divisors (116096378).

231612646 is a wasteful number, since it uses less digits than its factorization.

231612646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96686.

The product of its digits is 10368, while the sum is 31.

The square root of 231612646 is about 15218.8253817435. The cubic root of 231612646 is about 614.1211992882.

Adding to 231612646 its reverse (646216132), we get a palindrome (877828778).

The spelling of 231612646 in words is "two hundred thirty-one million, six hundred twelve thousand, six hundred forty-six".