165265747 has 2 divisors, whose sum is σ = 165265748. Its totient is φ = 165265746.

The previous prime is 165265697. The next prime is 165265753. The reversal of 165265747 is 747562561.

165265747 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 an emirp because it is prime and its reverse (747562561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165265747 - 2¹⁹ = 164741459 is a prime.

It is not a weakly prime, because it can be changed into another prime (165265757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82632873 + 82632874.

It is an arithmetic number, because the mean of its divisors is an integer number (82632874).

Almost surely, 2^165265747 is an apocalyptic number.

165265747 is a deficient number, since it is larger than the sum of its proper divisors (1).

165265747 is an equidigital number, since it uses as much as digits as its factorization.

165265747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352800, while the sum is 43.

The square root of 165265747 is about 12855.5726049056. The cubic root of 165265747 is about 548.7749560657.

The spelling of 165265747 in words is "one hundred sixty-five million, two hundred sixty-five thousand, seven hundred forty-seven".