231554942 has 4 divisors (see below), whose sum is σ = 347332416. Its totient is φ = 115777470.

The previous prime is 231554899. The next prime is 231554989. The reversal of 231554942 is 249455132.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57888734 + ... + 57888737.

It is an arithmetic number, because the mean of its divisors is an integer number (86833104).

Almost surely, 2^231554942 is an apocalyptic number.

231554942 is a deficient number, since it is larger than the sum of its proper divisors (115777474).

231554942 is a wasteful number, since it uses less digits than its factorization.

231554942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115777473.

The product of its digits is 43200, while the sum is 35.

The square root of 231554942 is about 15216.9294537367. The cubic root of 231554942 is about 614.0701943112.

The spelling of 231554942 in words is "two hundred thirty-one million, five hundred fifty-four thousand, nine hundred forty-two".