31006130 has 16 divisors (see below), whose sum is σ = 59094360. Its totient is φ = 11672832.

The previous prime is 31006123. The next prime is 31006243. The reversal of 31006130 is 3160013.

It can be written as a sum of positive squares in 4 ways, for example, as 30991489 + 14641 = 5567^2 + 121^2 .

It is a super-2 number, since 2×31006130² = 1922760195153800, which contains 22 as substring.

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, 91025 + ... + 91364.

Almost surely, 2^31006130 is an apocalyptic number.

31006130 is a deficient number, since it is larger than the sum of its proper divisors (28088230).

31006130 is a wasteful number, since it uses less digits than its factorization.

31006130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182413.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 31006130 is about 5568.3148258697. The cubic root of 31006130 is about 314.1587699641.

Adding to 31006130 its reverse (3160013), we get a palindrome (34166143).

The spelling of 31006130 in words is "thirty-one million, six thousand, one hundred thirty".