162081637 has 2 divisors, whose sum is σ = 162081638. Its totient is φ = 162081636.

The previous prime is 162081631. The next prime is 162081649. The reversal of 162081637 is 736180261.

162081637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160934596 + 1147041 = 12686^2 + 1071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162081637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162081631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81040818 + 81040819.

It is an arithmetic number, because the mean of its divisors is an integer number (81040819).

Almost surely, 2^162081637 is an apocalyptic number.

It is an amenable number.

162081637 is a deficient number, since it is larger than the sum of its proper divisors (1).

162081637 is an equidigital number, since it uses as much as digits as its factorization.

162081637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 162081637 is about 12731.1286616702. The cubic root of 162081637 is about 545.2277330116.

The spelling of 162081637 in words is "one hundred sixty-two million, eighty-one thousand, six hundred thirty-seven".