165245711 has 2 divisors, whose sum is σ = 165245712. Its totient is φ = 165245710.

The previous prime is 165245699. The next prime is 165245723. The reversal of 165245711 is 117542561.

It is a balanced prime because it is at equal distance from previous prime (165245699) and next prime (165245723).

It is an emirp because it is prime and its reverse (117542561) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165245711 is a prime.

It is a super-2 number, since 2×165245711² = 54612290007791042, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165245761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82622855 + 82622856.

It is an arithmetic number, because the mean of its divisors is an integer number (82622856).

Almost surely, 2^165245711 is an apocalyptic number.

165245711 is a deficient number, since it is larger than the sum of its proper divisors (1).

165245711 is an equidigital number, since it uses as much as digits as its factorization.

165245711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 32.

The square root of 165245711 is about 12854.7933083344. The cubic root of 165245711 is about 548.7527782509.

The spelling of 165245711 in words is "one hundred sixty-five million, two hundred forty-five thousand, seven hundred eleven".