7966157 has 2 divisors, whose sum is σ = 7966158. Its totient is φ = 7966156.

The previous prime is 7966141. The next prime is 7966199. The reversal of 7966157 is 7516697.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7474756 + 491401 = 2734^2 + 701^2 .

It is a cyclic number.

It is not a de Polignac number, because 7966157 - 2⁴ = 7966141 is a prime.

It is a Chen prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7966117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3983078 + 3983079.

It is an arithmetic number, because the mean of its divisors is an integer number (3983079).

Almost surely, 2^7966157 is an apocalyptic number.

It is an amenable number.

7966157 is a deficient number, since it is larger than the sum of its proper divisors (1).

7966157 is an equidigital number, since it uses as much as digits as its factorization.

7966157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79380, while the sum is 41.

The square root of 7966157 is about 2822.4381304114. The cubic root of 7966157 is about 199.7175763722.

The spelling of 7966157 in words is "seven million, nine hundred sixty-six thousand, one hundred fifty-seven".