162157757 has 2 divisors, whose sum is σ = 162157758. Its totient is φ = 162157756.

The previous prime is 162157753. The next prime is 162157777. The reversal of 162157757 is 757751261.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133310116 + 28847641 = 11546^2 + 5371^2 .

It is a cyclic number.

It is not a de Polignac number, because 162157757 - 2² = 162157753 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162157753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81078878 + 81078879.

It is an arithmetic number, because the mean of its divisors is an integer number (81078879).

Almost surely, 2^162157757 is an apocalyptic number.

It is an amenable number.

162157757 is a deficient number, since it is larger than the sum of its proper divisors (1).

162157757 is an equidigital number, since it uses as much as digits as its factorization.

162157757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102900, while the sum is 41.

The square root of 162157757 is about 12734.1178335996. The cubic root of 162157757 is about 545.3130732150.

The spelling of 162157757 in words is "one hundred sixty-two million, one hundred fifty-seven thousand, seven hundred fifty-seven".