165050387 has 2 divisors, whose sum is σ = 165050388. Its totient is φ = 165050386.

The previous prime is 165050371. The next prime is 165050419. The reversal of 165050387 is 783050561.

165050387 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 165050387 - 2⁴ = 165050371 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (165050287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82525193 + 82525194.

It is an arithmetic number, because the mean of its divisors is an integer number (82525194).

Almost surely, 2^165050387 is an apocalyptic number.

165050387 is a deficient number, since it is larger than the sum of its proper divisors (1).

165050387 is an equidigital number, since it uses as much as digits as its factorization.

165050387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 165050387 is about 12847.1937402687. The cubic root of 165050387 is about 548.5364804596.

The spelling of 165050387 in words is "one hundred sixty-five million, fifty thousand, three hundred eighty-seven".