165159107 has 4 divisors (see below), whose sum is σ = 165248976. Its totient is φ = 165069240.

The previous prime is 165159091. The next prime is 165159109. The reversal of 165159107 is 701951561.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 701951561 = 19 ⋅36944819.

It is a cyclic number.

It is not a de Polignac number, because 165159107 - 2⁴ = 165159091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165159109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42119 + ... + 45872.

It is an arithmetic number, because the mean of its divisors is an integer number (41312244).

Almost surely, 2^165159107 is an apocalyptic number.

165159107 is a deficient number, since it is larger than the sum of its proper divisors (89869).

165159107 is an equidigital number, since it uses as much as digits as its factorization.

165159107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89868.

The product of its (nonzero) digits is 9450, while the sum is 35.

The square root of 165159107 is about 12851.4243179501. The cubic root of 165159107 is about 548.6568958019.

The spelling of 165159107 in words is "one hundred sixty-five million, one hundred fifty-nine thousand, one hundred seven".