231151852 has 12 divisors (see below), whose sum is σ = 411372360. Its totient is φ = 113616896.

The previous prime is 231151849. The next prime is 231151859. The reversal of 231151852 is 258151132.

It is a self number, because there is not a number n which added to its sum of digits gives 231151852.

It is not an unprimeable number, because it can be changed into a prime (231151859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489493 + ... + 489964.

It is an arithmetic number, because the mean of its divisors is an integer number (34281030).

Almost surely, 2^231151852 is an apocalyptic number.

It is an amenable number.

231151852 is a deficient number, since it is larger than the sum of its proper divisors (180220508).

231151852 is a wasteful number, since it uses less digits than its factorization.

231151852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979520 (or 979518 counting only the distinct ones).

The product of its digits is 2400, while the sum is 28.

The square root of 231151852 is about 15203.6788968986. The cubic root of 231151852 is about 613.7136636292.

The spelling of 231151852 in words is "two hundred thirty-one million, one hundred fifty-one thousand, eight hundred fifty-two".