231289048 has 8 divisors (see below), whose sum is σ = 433666980. Its totient is φ = 115644520.

The previous prime is 231289001. The next prime is 231289057. The reversal of 231289048 is 840982132.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 231288998 and 231289016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14455558 + ... + 14455573.

Almost surely, 2^231289048 is an apocalyptic number.

It is an amenable number.

231289048 is a deficient number, since it is larger than the sum of its proper divisors (202377932).

231289048 is a wasteful number, since it uses less digits than its factorization.

231289048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28911137 (or 28911133 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 231289048 is about 15208.1901618832. The cubic root of 231289048 is about 613.8350591624.

The spelling of 231289048 in words is "two hundred thirty-one million, two hundred eighty-nine thousand, forty-eight".