231152049 has 28 divisors (see below), whose sum is σ = 349869300. Its totient is φ = 152635104.

The previous prime is 231152041. The next prime is 231152071. The reversal of 231152049 is 940251132.

It can be written as a sum of positive squares in 2 ways, for example, as 182250000 + 48902049 = 13500^2 + 6993^2 .

It is not a de Polignac number, because 231152049 - 2³ = 231152041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (231152041) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 78007 + ... + 80915.

Almost surely, 2^231152049 is an apocalyptic number.

It is an amenable number.

231152049 is a deficient number, since it is larger than the sum of its proper divisors (118717251).

231152049 is an equidigital number, since it uses as much as digits as its factorization.

231152049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036 (or 3021 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 231152049 is about 15203.6853755923. The cubic root of 231152049 is about 613.7138379757.

The spelling of 231152049 in words is "two hundred thirty-one million, one hundred fifty-two thousand, forty-nine".