164478974 has 16 divisors (see below), whose sum is σ = 270157680. Its totient is φ = 74482560.

The previous prime is 164478973. The next prime is 164478989. The reversal of 164478974 is 479874461.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164478971) 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, 7979 + ... + 19814.

It is an arithmetic number, because the mean of its divisors is an integer number (16884855).

Almost surely, 2^164478974 is an apocalyptic number.

164478974 is a deficient number, since it is larger than the sum of its proper divisors (105678706).

164478974 is a wasteful number, since it uses less digits than its factorization.

164478974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28075.

The product of its digits is 1354752, while the sum is 50.

The square root of 164478974 is about 12824.9356333667. The cubic root of 164478974 is about 547.9027279530.

The spelling of 164478974 in words is "one hundred sixty-four million, four hundred seventy-eight thousand, nine hundred seventy-four".