13158730 has 16 divisors (see below), whose sum is σ = 25507944. Its totient is φ = 4858560.

The previous prime is 13158709. The next prime is 13158749. The reversal of 13158730 is 3785131.

It can be written as a sum of positive squares in 4 ways, for example, as 3996001 + 9162729 = 1999^2 + 3027^2 .

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, 50481 + ... + 50740.

Almost surely, 2^13158730 is an apocalyptic number.

13158730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13158730 is a deficient number, since it is larger than the sum of its proper divisors (12349214).

13158730 is a wasteful number, since it uses less digits than its factorization.

13158730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101241.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 13158730 is about 3627.4963818038. The cubic root of 13158730 is about 236.0865932353.

The spelling of 13158730 in words is "thirteen million, one hundred fifty-eight thousand, seven hundred thirty".