231047854 has 4 divisors (see below), whose sum is σ = 346571784. Its totient is φ = 115523926.

The previous prime is 231047837. The next prime is 231047863. The reversal of 231047854 is 458740132.

231047854 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×231047854² = 106766221676010632, which contains 22 as substring.

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, 57761962 + ... + 57761965.

It is an arithmetic number, because the mean of its divisors is an integer number (86642946).

Almost surely, 2^231047854 is an apocalyptic number.

231047854 is a deficient number, since it is larger than the sum of its proper divisors (115523930).

231047854 is a wasteful number, since it uses less digits than its factorization.

231047854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115523929.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 231047854 is about 15200.2583530676. The cubic root of 231047854 is about 613.6216107682.

Adding to 231047854 its reverse (458740132), we get a palindrome (689787986).

The spelling of 231047854 in words is "two hundred thirty-one million, forty-seven thousand, eight hundred fifty-four".