253165 has 8 divisors (see below), whose sum is σ = 331488. Its totient is φ = 184080.

The previous prime is 253159. The next prime is 253229. The reversal of 253165 is 561352.

253165 = T₂₂₀ + T₂₂₁ + ... + T₂₂₉.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253165 - 2³ = 253157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2247 + ... + 2356.

It is an arithmetic number, because the mean of its divisors is an integer number (41436).

2²⁵³¹⁶⁵ is an apocalyptic number.

It is an amenable number.

253165 is a deficient number, since it is larger than the sum of its proper divisors (78323).

253165 is a wasteful number, since it uses less digits than its factorization.

253165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4619.

The product of its digits is 900, while the sum is 22.

The square root of 253165 is about 503.1550456867. The cubic root of 253165 is about 63.2607818018.

The spelling of 253165 in words is "two hundred fifty-three thousand, one hundred sixty-five".