165492529 has 2 divisors, whose sum is σ = 165492530. Its totient is φ = 165492528.

The previous prime is 165492517. The next prime is 165492571. The reversal of 165492529 is 925294561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86992929 + 78499600 = 9327^2 + 8860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165492529 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (165492599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82746264 + 82746265.

It is an arithmetic number, because the mean of its divisors is an integer number (82746265).

Almost surely, 2^165492529 is an apocalyptic number.

It is an amenable number.

165492529 is a deficient number, since it is larger than the sum of its proper divisors (1).

165492529 is an equidigital number, since it uses as much as digits as its factorization.

165492529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 43.

The square root of 165492529 is about 12864.3899583307. The cubic root of 165492529 is about 549.0258558077.

The spelling of 165492529 in words is "one hundred sixty-five million, four hundred ninety-two thousand, five hundred twenty-nine".