13140051 has 4 divisors (see below), whose sum is σ = 17520072. Its totient is φ = 8760032.

The previous prime is 13140047. The next prime is 13140079. The reversal of 13140051 is 15004131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13140051 - 2² = 13140047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13140051.

It is not an unprimeable number, because it can be changed into a prime (13140011) 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, 2190006 + ... + 2190011.

It is an arithmetic number, because the mean of its divisors is an integer number (4380018).

Almost surely, 2^13140051 is an apocalyptic number.

13140051 is a deficient number, since it is larger than the sum of its proper divisors (4380021).

13140051 is an equidigital number, since it uses as much as digits as its factorization.

13140051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4380020.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 13140051 is about 3624.9208267216. The cubic root of 13140051 is about 235.9748309365.

Adding to 13140051 its reverse (15004131), we get a palindrome (28144182).

The spelling of 13140051 in words is "thirteen million, one hundred forty thousand, fifty-one".