165364387 has 2 divisors, whose sum is σ = 165364388. Its totient is φ = 165364386.

The previous prime is 165364373. The next prime is 165364427. The reversal of 165364387 is 783463561.

165364387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165364387 - 2¹⁵ = 165331619 is a prime.

It is not a weakly prime, because it can be changed into another prime (165364307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82682193 + 82682194.

It is an arithmetic number, because the mean of its divisors is an integer number (82682194).

Almost surely, 2^165364387 is an apocalyptic number.

165364387 is a deficient number, since it is larger than the sum of its proper divisors (1).

165364387 is an equidigital number, since it uses as much as digits as its factorization.

165364387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 43.

The square root of 165364387 is about 12859.4085011714. The cubic root of 165364387 is about 548.8841143894.

The spelling of 165364387 in words is "one hundred sixty-five million, three hundred sixty-four thousand, three hundred eighty-seven".