13051690 has 8 divisors (see below), whose sum is σ = 23493060. Its totient is φ = 5220672.

The previous prime is 13051681. The next prime is 13051693. The reversal of 13051690 is 9615031.

13051690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11431161 + 1620529 = 3381^2 + 1273^2 .

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

It is a super-2 number, since 2×13051690² = 340693223712200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13051693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652575 + ... + 652594.

Almost surely, 2^13051690 is an apocalyptic number.

13051690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13051690 is a deficient number, since it is larger than the sum of its proper divisors (10441370).

13051690 is a wasteful number, since it uses less digits than its factorization.

13051690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305176.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 13051690 is about 3612.7122775001. The cubic root of 13051690 is about 235.4446989183. Note that the first 3 decimals are identical.

The spelling of 13051690 in words is "thirteen million, fifty-one thousand, six hundred ninety".