13124690 has 16 divisors (see below), whose sum is σ = 23843160. Its totient is φ = 5201280.

The previous prime is 13124669. The next prime is 13124693. The reversal of 13124690 is 9642131.

It can be written as a sum of positive squares in 4 ways, for example, as 12020089 + 1104601 = 3467^2 + 1051^2 .

It is a super-2 number, since 2×13124690² = 344514975192200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13124693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4931 + ... + 7110.

Almost surely, 2^13124690 is an apocalyptic number.

13124690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13124690 is a deficient number, since it is larger than the sum of its proper divisors (10718470).

13124690 is a wasteful number, since it uses less digits than its factorization.

13124690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12157.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 13124690 is about 3622.8014022300. The cubic root of 13124690 is about 235.8828418772.

The spelling of 13124690 in words is "thirteen million, one hundred twenty-four thousand, six hundred ninety".