164570494 has 16 divisors (see below), whose sum is σ = 271817856. Its totient is φ = 74104600.

The previous prime is 164570473. The next prime is 164570501. The reversal of 164570494 is 494075461.

It is a congruent number.

It is an unprimeable number.

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, 32602 + ... + 37309.

It is an arithmetic number, because the mean of its divisors is an integer number (16988616).

Almost surely, 2^164570494 is an apocalyptic number.

164570494 is a deficient number, since it is larger than the sum of its proper divisors (107247362).

164570494 is a wasteful number, since it uses less digits than its factorization.

164570494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70031.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 164570494 is about 12828.5031862646. The cubic root of 164570494 is about 548.0043311324.

The spelling of 164570494 in words is "one hundred sixty-four million, five hundred seventy thousand, four hundred ninety-four".