165452249 has 2 divisors, whose sum is σ = 165452250. Its totient is φ = 165452248.

The previous prime is 165452233. The next prime is 165452263. The reversal of 165452249 is 942254561.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108826624 + 56625625 = 10432^2 + 7525^2 .

It is a cyclic number.

It is not a de Polignac number, because 165452249 - 2⁴ = 165452233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (165451249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82726124 + 82726125.

It is an arithmetic number, because the mean of its divisors is an integer number (82726125).

Almost surely, 2^165452249 is an apocalyptic number.

It is an amenable number.

165452249 is a deficient number, since it is larger than the sum of its proper divisors (1).

165452249 is an equidigital number, since it uses as much as digits as its factorization.

165452249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 38.

The square root of 165452249 is about 12862.8243010623. The cubic root of 165452249 is about 548.9813088705.

The spelling of 165452249 in words is "one hundred sixty-five million, four hundred fifty-two thousand, two hundred forty-nine".