164349974 has 4 divisors (see below), whose sum is σ = 246524964. Its totient is φ = 82174986.

The previous prime is 164349949. The next prime is 164350009. The reversal of 164349974 is 479943461.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41087492 + ... + 41087495.

It is an arithmetic number, because the mean of its divisors is an integer number (61631241).

Almost surely, 2^164349974 is an apocalyptic number.

164349974 is a deficient number, since it is larger than the sum of its proper divisors (82174990).

164349974 is an equidigital number, since it uses as much as digits as its factorization.

164349974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82174989.

The product of its digits is 653184, while the sum is 47.

The square root of 164349974 is about 12819.9053818661. The cubic root of 164349974 is about 547.7594514072.

The spelling of 164349974 in words is "one hundred sixty-four million, three hundred forty-nine thousand, nine hundred seventy-four".