151165 has 12 divisors (see below), whose sum is σ = 211356. Its totient is φ = 103488.

The previous prime is 151163. The next prime is 151169. The reversal of 151165 is 561151.

It can be written as a sum of positive squares in 2 ways, for example, as 23716 + 127449 = 154^2 + 357^2 .

It is not a de Polignac number, because 151165 - 2¹ = 151163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151163) 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 11 ways as a sum of consecutive naturals, for example, 64 + ... + 553.

It is an arithmetic number, because the mean of its divisors is an integer number (17613).

2¹⁵¹¹⁶⁵ is an apocalyptic number.

It is an amenable number.

151165 is a deficient number, since it is larger than the sum of its proper divisors (60191).

151165 is an equidigital number, since it uses as much as digits as its factorization.

151165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 629 counting only the distinct ones).

The product of its digits is 150, while the sum is 19.

The square root of 151165 is about 388.7994341560. The cubic root of 151165 is about 53.2701291207.

The spelling of 151165 in words is "one hundred fifty-one thousand, one hundred sixty-five".