13251157 has 2 divisors, whose sum is σ = 13251158. Its totient is φ = 13251156.

The previous prime is 13251137. The next prime is 13251169. The reversal of 13251157 is 75115231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13242321 + 8836 = 3639^2 + 94^2 .

It is a cyclic number.

It is not a de Polignac number, because 13251157 - 2¹⁹ = 12726869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13251107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6625578 + 6625579.

It is an arithmetic number, because the mean of its divisors is an integer number (6625579).

Almost surely, 2^13251157 is an apocalyptic number.

It is an amenable number.

13251157 is a deficient number, since it is larger than the sum of its proper divisors (1).

13251157 is an equidigital number, since it uses as much as digits as its factorization.

13251157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1050, while the sum is 25.

The square root of 13251157 is about 3640.2138673435. The cubic root of 13251157 is about 236.6380619620.

Adding to 13251157 its reverse (75115231), we get a palindrome (88366388).

The spelling of 13251157 in words is "thirteen million, two hundred fifty-one thousand, one hundred fifty-seven".