31149496 has 48 divisors (see below), whose sum is σ = 68434200. Its totient is φ = 13253184.

The previous prime is 31149487. The next prime is 31149497. The reversal of 31149496 is 69494113.

It is a super-2 number, since 2×31149496² = 1940582202108032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31149497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89595 + ... + 89941.

Almost surely, 2^31149496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31149496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34217100).

31149496 is an abundant number, since it is smaller than the sum of its proper divisors (37284704).

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

31149496 is a wasteful number, since it uses less digits than its factorization.

31149496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596 (or 585 counting only the distinct ones).

The product of its digits is 23328, while the sum is 37.

The square root of 31149496 is about 5581.1733533371. The cubic root of 31149496 is about 314.6422275459.

The spelling of 31149496 in words is "thirty-one million, one hundred forty-nine thousand, four hundred ninety-six".