15699113 has 4 divisors (see below), whose sum is σ = 16205568. Its totient is φ = 15192660.

The previous prime is 15699107. The next prime is 15699119. The reversal of 15699113 is 31199651.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31199651 = 7 ⋅4457093.

It is an interprime number because it is at equal distance from previous prime (15699107) and next prime (15699119).

It is a cyclic number.

It is not a de Polignac number, because 15699113 - 2⁴ = 15699097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15699119) 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, 253181 + ... + 253242.

It is an arithmetic number, because the mean of its divisors is an integer number (4051392).

Almost surely, 2^15699113 is an apocalyptic number.

It is an amenable number.

15699113 is a deficient number, since it is larger than the sum of its proper divisors (506455).

15699113 is an equidigital number, since it uses as much as digits as its factorization.

15699113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506454.

The product of its digits is 7290, while the sum is 35.

The square root of 15699113 is about 3962.2106203482. The cubic root of 15699113 is about 250.3946460236.

The spelling of 15699113 in words is "fifteen million, six hundred ninety-nine thousand, one hundred thirteen".