13172051 has 2 divisors, whose sum is σ = 13172052. Its totient is φ = 13172050.

The previous prime is 13172023. The next prime is 13172053. The reversal of 13172051 is 15027131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13172051 - 2⁶ = 13171987 is a prime.

It is a Sophie Germain prime.

Together with 13172053, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13172053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6586025 + 6586026.

It is an arithmetic number, because the mean of its divisors is an integer number (6586026).

Almost surely, 2^13172051 is an apocalyptic number.

13172051 is a deficient number, since it is larger than the sum of its proper divisors (1).

13172051 is an equidigital number, since it uses as much as digits as its factorization.

13172051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 13172051 is about 3629.3320322065. The cubic root of 13172051 is about 236.1662323512.

Adding to 13172051 its reverse (15027131), we get a palindrome (28199182).

The spelling of 13172051 in words is "thirteen million, one hundred seventy-two thousand, fifty-one".