165028907 has 2 divisors, whose sum is σ = 165028908. Its totient is φ = 165028906.

The previous prime is 165028819. The next prime is 165028939. The reversal of 165028907 is 709820561.

It is a strong prime.

It is an emirp because it is prime and its reverse (709820561) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165028907 is a prime.

It is a super-2 number, since 2×165028907² = 54469080291229298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (165028007) 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, 82514453 + 82514454.

It is an arithmetic number, because the mean of its divisors is an integer number (82514454).

Almost surely, 2^165028907 is an apocalyptic number.

165028907 is a deficient number, since it is larger than the sum of its proper divisors (1).

165028907 is an equidigital number, since it uses as much as digits as its factorization.

165028907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 165028907 is about 12846.3577328362. The cubic root of 165028907 is about 548.5126835352.

The spelling of 165028907 in words is "one hundred sixty-five million, twenty-eight thousand, nine hundred seven".