13042157 has 2 divisors, whose sum is σ = 13042158. Its totient is φ = 13042156.

The previous prime is 13042129. The next prime is 13042163. The reversal of 13042157 is 75124031.

13042157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9066121 + 3976036 = 3011^2 + 1994^2 .

It is an emirp because it is prime and its reverse (75124031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13042157 - 2⁸ = 13041901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13042457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6521078 + 6521079.

It is an arithmetic number, because the mean of its divisors is an integer number (6521079).

Almost surely, 2^13042157 is an apocalyptic number.

It is an amenable number.

13042157 is a deficient number, since it is larger than the sum of its proper divisors (1).

13042157 is an equidigital number, since it uses as much as digits as its factorization.

13042157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 13042157 is about 3611.3926676561. The cubic root of 13042157 is about 235.3873617459.

Adding to 13042157 its reverse (75124031), we get a palindrome (88166188).

The spelling of 13042157 in words is "thirteen million, forty-two thousand, one hundred fifty-seven".