165136479 has 8 divisors (see below), whose sum is σ = 225552432. Its totient is φ = 107405760.

The previous prime is 165136471. The next prime is 165136507. The reversal of 165136479 is 974631561.

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

It is not a de Polignac number, because 165136479 - 2³ = 165136471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165136479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165136471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671164 + ... + 671409.

It is an arithmetic number, because the mean of its divisors is an integer number (28194054).

Almost surely, 2^165136479 is an apocalyptic number.

165136479 is a deficient number, since it is larger than the sum of its proper divisors (60415953).

165136479 is a wasteful number, since it uses less digits than its factorization.

165136479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342617.

The product of its digits is 136080, while the sum is 42.

The square root of 165136479 is about 12850.5439184495. The cubic root of 165136479 is about 548.6318379945.

The spelling of 165136479 in words is "one hundred sixty-five million, one hundred thirty-six thousand, four hundred seventy-nine".