13156730 has 8 divisors (see below), whose sum is σ = 23682132. Its totient is φ = 5262688.

The previous prime is 13156729. The next prime is 13156733. The reversal of 13156730 is 3765131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11895601 + 1261129 = 3449^2 + 1123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13156730.

It is not an unprimeable number, because it can be changed into a prime (13156733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657827 + ... + 657846.

Almost surely, 2^13156730 is an apocalyptic number.

13156730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13156730 is a deficient number, since it is larger than the sum of its proper divisors (10525402).

13156730 is a wasteful number, since it uses less digits than its factorization.

13156730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315680.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 13156730 is about 3627.2206991028. The cubic root of 13156730 is about 236.0746316678.

The spelling of 13156730 in words is "thirteen million, one hundred fifty-six thousand, seven hundred thirty".