13156651 has 2 divisors, whose sum is σ = 13156652. Its totient is φ = 13156650.

The previous prime is 13156643. The next prime is 13156673. The reversal of 13156651 is 15665131.

It is a weak prime.

It is an emirp because it is prime and its reverse (15665131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13156651 - 2³ = 13156643 is a prime.

It is not a weakly prime, because it can be changed into another prime (13156631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6578325 + 6578326.

It is an arithmetic number, because the mean of its divisors is an integer number (6578326).

Almost surely, 2^13156651 is an apocalyptic number.

13156651 is a deficient number, since it is larger than the sum of its proper divisors (1).

13156651 is an equidigital number, since it uses as much as digits as its factorization.

13156651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 28.

The square root of 13156651 is about 3627.2098092060. The cubic root of 13156651 is about 236.0741591610.

The spelling of 13156651 in words is "thirteen million, one hundred fifty-six thousand, six hundred fifty-one".