13099970 has 16 divisors (see below), whose sum is σ = 25394040. Its totient is φ = 4836864.

The previous prime is 13099937. The next prime is 13099991. The reversal of 13099970 is 7999031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9554281 + 3545689 = 3091^2 + 1883^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50255 + ... + 50514.

Almost surely, 2^13099970 is an apocalyptic number.

13099970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13099970 is a deficient number, since it is larger than the sum of its proper divisors (12294070).

13099970 is a wasteful number, since it uses less digits than its factorization.

13099970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100789.

The product of its (nonzero) digits is 15309, while the sum is 38.

The square root of 13099970 is about 3619.3880698262. The cubic root of 13099970 is about 235.7346558110.

The spelling of 13099970 in words is "thirteen million, ninety-nine thousand, nine hundred seventy".