231553442 has 8 divisors (see below), whose sum is σ = 348115536. Its totient is φ = 115514932.

The previous prime is 231553423. The next prime is 231553459. The reversal of 231553442 is 244355132.

It is a happy number.

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

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, 129788 + ... + 131559.

It is an arithmetic number, because the mean of its divisors is an integer number (43514442).

Almost surely, 2^231553442 is an apocalyptic number.

231553442 is a deficient number, since it is larger than the sum of its proper divisors (116562094).

231553442 is a wasteful number, since it uses less digits than its factorization.

231553442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261792.

The product of its digits is 14400, while the sum is 29.

The square root of 231553442 is about 15216.8801664467. The cubic root of 231553442 is about 614.0688683375.

The spelling of 231553442 in words is "two hundred thirty-one million, five hundred fifty-three thousand, four hundred forty-two".