162156377 has 2 divisors, whose sum is σ = 162156378. Its totient is φ = 162156376.

The previous prime is 162156359. The next prime is 162156391. The reversal of 162156377 is 773651261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109390681 + 52765696 = 10459^2 + 7264^2 .

It is a cyclic number.

It is not a de Polignac number, because 162156377 - 2⁸ = 162156121 is a prime.

It is a super-2 number, since 2×162156377² = 52589381203532258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 162156377.

It is not a weakly prime, because it can be changed into another prime (162156307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81078188 + 81078189.

It is an arithmetic number, because the mean of its divisors is an integer number (81078189).

Almost surely, 2^162156377 is an apocalyptic number.

It is an amenable number.

162156377 is a deficient number, since it is larger than the sum of its proper divisors (1).

162156377 is an equidigital number, since it uses as much as digits as its factorization.

162156377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 38.

The square root of 162156377 is about 12734.0636483410. The cubic root of 162156377 is about 545.3115262972.

The spelling of 162156377 in words is "one hundred sixty-two million, one hundred fifty-six thousand, three hundred seventy-seven".