31461130 has 16 divisors (see below), whose sum is σ = 56972160. Its totient is φ = 12508432.

The previous prime is 31461127. The next prime is 31461149. The reversal of 31461130 is 3116413.

It is a junction number, because it is equal to n+sod(n) for n = 31461098 and 31461107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7750 + ... + 11089.

It is an arithmetic number, because the mean of its divisors is an integer number (3560760).

Almost surely, 2^31461130 is an apocalyptic number.

31461130 is a deficient number, since it is larger than the sum of its proper divisors (25511030).

31461130 is a wasteful number, since it uses less digits than its factorization.

31461130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19013.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 31461130 is about 5609.0221964260. The cubic root of 31461130 is about 315.6880232936.

Adding to 31461130 its reverse (3116413), we get a palindrome (34577543).

The spelling of 31461130 in words is "thirty-one million, four hundred sixty-one thousand, one hundred thirty".