165752987 has 2 divisors, whose sum is σ = 165752988. Its totient is φ = 165752986.

The previous prime is 165752971. The next prime is 165752999. The reversal of 165752987 is 789257561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165752987 - 2⁴ = 165752971 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (165752947) 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, 82876493 + 82876494.

It is an arithmetic number, because the mean of its divisors is an integer number (82876494).

Almost surely, 2^165752987 is an apocalyptic number.

165752987 is a deficient number, since it is larger than the sum of its proper divisors (1).

165752987 is an equidigital number, since it uses as much as digits as its factorization.

165752987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1058400, while the sum is 50.

The square root of 165752987 is about 12874.5091945285. The cubic root of 165752987 is about 549.3137302800.

The spelling of 165752987 in words is "one hundred sixty-five million, seven hundred fifty-two thousand, nine hundred eighty-seven".