165290853 has 32 divisors (see below), whose sum is σ = 280010752. Its totient is φ = 84369600.

The previous prime is 165290849. The next prime is 165290887. The reversal of 165290853 is 358092561.

165290853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 165290853 - 2² = 165290849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165290353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1303 + ... + 18228.

It is an arithmetic number, because the mean of its divisors is an integer number (8750336).

Almost surely, 2^165290853 is an apocalyptic number.

165290853 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

165290853 is a deficient number, since it is larger than the sum of its proper divisors (114719899).

165290853 is a wasteful number, since it uses less digits than its factorization.

165290853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19585.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 165290853 is about 12856.5490315248. The cubic root of 165290853 is about 548.8027433249.

The spelling of 165290853 in words is "one hundred sixty-five million, two hundred ninety thousand, eight hundred fifty-three".