13461931 has 4 divisors (see below), whose sum is σ = 15385072. Its totient is φ = 11538792.

The previous prime is 13461919. The next prime is 13461941. The reversal of 13461931 is 13916431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13916431 = 521 ⋅26711.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13461931 is a prime.

It is a super-2 number, since 2×13461931² = 362447172497522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13461931.

It is not an unprimeable number, because it can be changed into a prime (13461901) 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, 961560 + ... + 961573.

It is an arithmetic number, because the mean of its divisors is an integer number (3846268).

Almost surely, 2^13461931 is an apocalyptic number.

13461931 is a deficient number, since it is larger than the sum of its proper divisors (1923141).

13461931 is an equidigital number, since it uses as much as digits as its factorization.

13461931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923140.

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

The square root of 13461931 is about 3669.0504221120. The cubic root of 13461931 is about 237.8861294129.

The spelling of 13461931 in words is "thirteen million, four hundred sixty-one thousand, nine hundred thirty-one".