162189539 has 2 divisors, whose sum is σ = 162189540. Its totient is φ = 162189538.

The previous prime is 162189523. The next prime is 162189569. The reversal of 162189539 is 935981261.

It is a happy number.

162189539 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 is a cyclic number.

It is not a de Polignac number, because 162189539 - 2⁴ = 162189523 is a prime.

It is a super-2 number, since 2×162189539² = 52610893122065042, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 162189539.

It is not a weakly prime, because it can be changed into another prime (162189569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81094769 + 81094770.

It is an arithmetic number, because the mean of its divisors is an integer number (81094770).

Almost surely, 2^162189539 is an apocalyptic number.

162189539 is a deficient number, since it is larger than the sum of its proper divisors (1).

162189539 is an equidigital number, since it uses as much as digits as its factorization.

162189539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 44.

The square root of 162189539 is about 12735.3656798696. The cubic root of 162189539 is about 545.3486969768.

The spelling of 162189539 in words is "one hundred sixty-two million, one hundred eighty-nine thousand, five hundred thirty-nine".