165135453 has 8 divisors (see below), whose sum is σ = 251635008. Its totient is φ = 94363104.

The previous prime is 165135449. The next prime is 165135493. The reversal of 165135453 is 354531561.

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

It is not a de Polignac number, because 165135453 - 2² = 165135449 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165135493) 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, 3931776 + ... + 3931817.

It is an arithmetic number, because the mean of its divisors is an integer number (31454376).

Almost surely, 2^165135453 is an apocalyptic number.

It is an amenable number.

165135453 is a deficient number, since it is larger than the sum of its proper divisors (86499555).

165135453 is an equidigital number, since it uses as much as digits as its factorization.

165135453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7863603.

The product of its digits is 27000, while the sum is 33.

The square root of 165135453 is about 12850.5039978983. The cubic root of 165135453 is about 548.6307017678.

The spelling of 165135453 in words is "one hundred sixty-five million, one hundred thirty-five thousand, four hundred fifty-three".