13139914 has 4 divisors (see below), whose sum is σ = 19709874. Its totient is φ = 6569956.

The previous prime is 13139909. The next prime is 13139941. The reversal of 13139914 is 41993131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41993131 = 29 ⋅1448039.

It can be written as a sum of positive squares in only one way, i.e., 7112889 + 6027025 = 2667^2 + 2455^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3284977 + ... + 3284980.

Almost surely, 2^13139914 is an apocalyptic number.

13139914 is a deficient number, since it is larger than the sum of its proper divisors (6569960).

13139914 is an equidigital number, since it uses as much as digits as its factorization.

13139914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6569959.

The product of its digits is 2916, while the sum is 31.

The square root of 13139914 is about 3624.9019297079. The cubic root of 13139914 is about 235.9740108315.

The spelling of 13139914 in words is "thirteen million, one hundred thirty-nine thousand, nine hundred fourteen".