165384974 has 4 divisors (see below), whose sum is σ = 248077464. Its totient is φ = 82692486.

The previous prime is 165384953. The next prime is 165384977. The reversal of 165384974 is 479483561.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165384977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41346242 + ... + 41346245.

It is an arithmetic number, because the mean of its divisors is an integer number (62019366).

Almost surely, 2^165384974 is an apocalyptic number.

165384974 is a deficient number, since it is larger than the sum of its proper divisors (82692490).

165384974 is an equidigital number, since it uses as much as digits as its factorization.

165384974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82692489.

The product of its digits is 725760, while the sum is 47.

The square root of 165384974 is about 12860.2089407599. The cubic root of 165384974 is about 548.9068911766.

It can be divided in two parts, 16538 and 4974, that added together give a palindrome (21512).

The spelling of 165384974 in words is "one hundred sixty-five million, three hundred eighty-four thousand, nine hundred seventy-four".