2162277157 has 2 divisors, whose sum is σ = 2162277158. Its totient is φ = 2162277156.

The previous prime is 2162277133. The next prime is 2162277179. The reversal of 2162277157 is 7517722612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1284577281 + 877699876 = 35841^2 + 29626^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2162277157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2162277457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081138578 + 1081138579.

It is an arithmetic number, because the mean of its divisors is an integer number (1081138579).

Almost surely, 2^2162277157 is an apocalyptic number.

It is an amenable number.

2162277157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2162277157 is an equidigital number, since it uses as much as digits as its factorization.

2162277157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82320, while the sum is 40.

The square root of 2162277157 is about 46500.2920098358. The cubic root of 2162277157 is about 1293.1149124466.

Adding to 2162277157 its reverse (7517722612), we get a palindrome (9679999769).

The spelling of 2162277157 in words is "two billion, one hundred sixty-two million, two hundred seventy-seven thousand, one hundred fifty-seven".