231097650 has 96 divisors (see below), whose sum is σ = 662040960. Its totient is φ = 52254720.

The previous prime is 231097639. The next prime is 231097661. The reversal of 231097650 is 56790132.

It is an interprime number because it is at equal distance from previous prime (231097639) and next prime (231097661).

It is a super-2 number, since 2×231097650² = 106812247671045000, which contains 22 as substring.

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 in 47 ways as a sum of consecutive naturals, for example, 100716 + ... + 102984.

It is an arithmetic number, because the mean of its divisors is an integer number (6896260).

Almost surely, 2^231097650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231097650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331020480).

231097650 is an abundant number, since it is smaller than the sum of its proper divisors (430943310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231097650 is a wasteful number, since it uses less digits than its factorization.

231097650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388 (or 2383 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 231097650 is about 15201.8962632956. The cubic root of 231097650 is about 613.6656906797.

The spelling of 231097650 in words is "two hundred thirty-one million, ninety-seven thousand, six hundred fifty".