165106253 has 8 divisors (see below), whose sum is σ = 181590528. Its totient is φ = 149162544.

The previous prime is 165106241. The next prime is 165106267. The reversal of 165106253 is 352601561.

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

It is a cyclic number.

It is not a de Polignac number, because 165106253 - 2⁴ = 165106237 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 (165106273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134501 + ... + 135722.

It is an arithmetic number, because the mean of its divisors is an integer number (22698816).

Almost surely, 2^165106253 is an apocalyptic number.

165106253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

165106253 is a deficient number, since it is larger than the sum of its proper divisors (16484275).

165106253 is a wasteful number, since it uses less digits than its factorization.

165106253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270283.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 165106253 is about 12849.3678054603. The cubic root of 165106253 is about 548.5983627384.

The spelling of 165106253 in words is "one hundred sixty-five million, one hundred six thousand, two hundred fifty-three".