31799148 has 12 divisors (see below), whose sum is σ = 74198040. Its totient is φ = 10599712.

The previous prime is 31799147. The next prime is 31799153. The reversal of 31799148 is 84199713.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×31799148² = 2022371627051808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31799147) 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, 1324953 + ... + 1324976.

It is an arithmetic number, because the mean of its divisors is an integer number (6183170).

Almost surely, 2^31799148 is an apocalyptic number.

It is an amenable number.

31799148 is an abundant number, since it is smaller than the sum of its proper divisors (42398892).

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

31799148 is a wasteful number, since it uses less digits than its factorization.

31799148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649936 (or 2649934 counting only the distinct ones).

The product of its digits is 54432, while the sum is 42.

The square root of 31799148 is about 5639.0733281276. The cubic root of 31799148 is about 316.8145810680.

The spelling of 31799148 in words is "thirty-one million, seven hundred ninety-nine thousand, one hundred forty-eight".