13113946 has 4 divisors (see below), whose sum is σ = 19670922. Its totient is φ = 6556972.

The previous prime is 13113931. The next prime is 13113983. The reversal of 13113946 is 64931131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64931131 = 107 ⋅606833.

It can be written as a sum of positive squares in only one way, i.e., 9369721 + 3744225 = 3061^2 + 1935^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3278485 + ... + 3278488.

Almost surely, 2^13113946 is an apocalyptic number.

13113946 is a deficient number, since it is larger than the sum of its proper divisors (6556976).

13113946 is an equidigital number, since it uses as much as digits as its factorization.

13113946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6556975.

The product of its digits is 1944, while the sum is 28.

The square root of 13113946 is about 3621.3182682554. The cubic root of 13113946 is about 235.8184589697.

The spelling of 13113946 in words is "thirteen million, one hundred thirteen thousand, nine hundred forty-six".