165048451 has 2 divisors, whose sum is σ = 165048452. Its totient is φ = 165048450.

The previous prime is 165048439. The next prime is 165048467. The reversal of 165048451 is 154840561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165048451 - 2²⁵ = 131494019 is a prime.

It is not a weakly prime, because it can be changed into another prime (165048431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82524225 + 82524226.

It is an arithmetic number, because the mean of its divisors is an integer number (82524226).

Almost surely, 2^165048451 is an apocalyptic number.

165048451 is a deficient number, since it is larger than the sum of its proper divisors (1).

165048451 is an equidigital number, since it uses as much as digits as its factorization.

165048451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 165048451 is about 12847.1183928537. The cubic root of 165048451 is about 548.5343357191.

The spelling of 165048451 in words is "one hundred sixty-five million, forty-eight thousand, four hundred fifty-one".