231289952 has 12 divisors (see below), whose sum is σ = 455352156. Its totient is φ = 115644960.

The previous prime is 231289931. The next prime is 231289973. The reversal of 231289952 is 259982132.

It is an interprime number because it is at equal distance from previous prime (231289931) and next prime (231289973).

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, 3613874 + ... + 3613937.

It is an arithmetic number, because the mean of its divisors is an integer number (37946013).

Almost surely, 2^231289952 is an apocalyptic number.

It is an amenable number.

231289952 is a deficient number, since it is larger than the sum of its proper divisors (224062204).

231289952 is an equidigital number, since it uses as much as digits as its factorization.

231289952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7227821 (or 7227813 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 231289952 is about 15208.2198826819. The cubic root of 231289952 is about 613.8358588921.

The spelling of 231289952 in words is "two hundred thirty-one million, two hundred eighty-nine thousand, nine hundred fifty-two".