12745157 has 12 divisors (see below), whose sum is σ = 13379724. Its totient is φ = 12136320.

The previous prime is 12745147. The next prime is 12745163. The reversal of 12745157 is 75154721.

12745157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 312481 + 12432676 = 559^2 + 3526^2 .

It is not a de Polignac number, because 12745157 - 2⁶ = 12745093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12745127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112733 + ... + 112845.

It is an arithmetic number, because the mean of its divisors is an integer number (1114977).

Almost surely, 2^12745157 is an apocalyptic number.

It is an amenable number.

12745157 is a deficient number, since it is larger than the sum of its proper divisors (634567).

12745157 is an equidigital number, since it uses as much as digits as its factorization.

12745157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 217 counting only the distinct ones).

The product of its digits is 9800, while the sum is 32.

The square root of 12745157 is about 3570.0359942163. The cubic root of 12745157 is about 233.5868534718.

Adding to 12745157 its reverse (75154721), we get a palindrome (87899878).

The spelling of 12745157 in words is "twelve million, seven hundred forty-five thousand, one hundred fifty-seven".