13140929 has 4 divisors (see below), whose sum is σ = 13446576. Its totient is φ = 12835284.

The previous prime is 13140923. The next prime is 13140947. The reversal of 13140929 is 92904131.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 13140929 - 2¹² = 13136833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13140923) 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, 152759 + ... + 152844.

It is an arithmetic number, because the mean of its divisors is an integer number (3361644).

Almost surely, 2^13140929 is an apocalyptic number.

It is an amenable number.

13140929 is a deficient number, since it is larger than the sum of its proper divisors (305647).

13140929 is an equidigital number, since it uses as much as digits as its factorization.

13140929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305646.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 13140929 is about 3625.0419307920. The cubic root of 13140929 is about 235.9800866565.

The spelling of 13140929 in words is "thirteen million, one hundred forty thousand, nine hundred twenty-nine".