165358933 has 2 divisors, whose sum is σ = 165358934. Its totient is φ = 165358932.

The previous prime is 165358927. The next prime is 165358961. The reversal of 165358933 is 339853561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122036209 + 43322724 = 11047^2 + 6582^2 .

It is a cyclic number.

It is not a de Polignac number, because 165358933 - 2⁵ = 165358901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165358933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165358903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82679466 + 82679467.

It is an arithmetic number, because the mean of its divisors is an integer number (82679467).

Almost surely, 2^165358933 is an apocalyptic number.

It is an amenable number.

165358933 is a deficient number, since it is larger than the sum of its proper divisors (1).

165358933 is an equidigital number, since it uses as much as digits as its factorization.

165358933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 291600, while the sum is 43.

The square root of 165358933 is about 12859.1964367918. The cubic root of 165358933 is about 548.8780799444.

The spelling of 165358933 in words is "one hundred sixty-five million, three hundred fifty-eight thousand, nine hundred thirty-three".