162644539 has 2 divisors, whose sum is σ = 162644540. Its totient is φ = 162644538.

The previous prime is 162644527. The next prime is 162644543. The reversal of 162644539 is 935446261.

162644539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162644539 is a prime.

It is not a weakly prime, because it can be changed into another prime (162644639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81322269 + 81322270.

It is an arithmetic number, because the mean of its divisors is an integer number (81322270).

Almost surely, 2^162644539 is an apocalyptic number.

162644539 is a deficient number, since it is larger than the sum of its proper divisors (1).

162644539 is an equidigital number, since it uses as much as digits as its factorization.

162644539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 40.

The square root of 162644539 is about 12753.2168098876. The cubic root of 162644539 is about 545.8581872619.

The spelling of 162644539 in words is "one hundred sixty-two million, six hundred forty-four thousand, five hundred thirty-nine".