31490127 has 12 divisors (see below), whose sum is σ = 47170760. Its totient is φ = 20993256.

The previous prime is 31490119. The next prime is 31490131. The reversal of 31490127 is 72109413.

It is not a de Polignac number, because 31490127 - 2³ = 31490119 is a prime.

It is a super-2 number, since 2×31490127² = 1983256196952258, which contains 22 as substring.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31490127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31490227) 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, 64552 + ... + 65037.

Almost surely, 2^31490127 is an apocalyptic number.

31490127 is a deficient number, since it is larger than the sum of its proper divisors (15680633).

31490127 is an equidigital number, since it uses as much as digits as its factorization.

31490127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129604 (or 129592 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 31490127 is about 5611.6064544834. The cubic root of 31490127 is about 315.7849809756.

The spelling of 31490127 in words is "thirty-one million, four hundred ninety thousand, one hundred twenty-seven".