12597157 has 2 divisors, whose sum is σ = 12597158. Its totient is φ = 12597156.

The previous prime is 12597121. The next prime is 12597161. The reversal of 12597157 is 75179521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6687396 + 5909761 = 2586^2 + 2431^2 .

It is an emirp because it is prime and its reverse (75179521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12597157 - 2⁷ = 12597029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12597757) 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, 6298578 + 6298579.

It is an arithmetic number, because the mean of its divisors is an integer number (6298579).

Almost surely, 2^12597157 is an apocalyptic number.

It is an amenable number.

12597157 is a deficient number, since it is larger than the sum of its proper divisors (1).

12597157 is an equidigital number, since it uses as much as digits as its factorization.

12597157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22050, while the sum is 37.

The square root of 12597157 is about 3549.2473850100. The cubic root of 12597157 is about 232.6791743298.

The spelling of 12597157 in words is "twelve million, five hundred ninety-seven thousand, one hundred fifty-seven".