164474291 has 4 divisors (see below), whose sum is σ = 167973792. Its totient is φ = 160974792.

The previous prime is 164474273. The next prime is 164474293. The reversal of 164474291 is 192474461.

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

It is a cyclic number.

It is not a de Polignac number, because 164474291 - 2²⁶ = 97365427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164474293) 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 3 ways as a sum of consecutive naturals, for example, 1749680 + ... + 1749773.

It is an arithmetic number, because the mean of its divisors is an integer number (41993448).

Almost surely, 2^164474291 is an apocalyptic number.

164474291 is a deficient number, since it is larger than the sum of its proper divisors (3499501).

164474291 is an equidigital number, since it uses as much as digits as its factorization.

164474291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499500.

The product of its digits is 48384, while the sum is 38.

The square root of 164474291 is about 12824.7530580514. The cubic root of 164474291 is about 547.8975279919.

The spelling of 164474291 in words is "one hundred sixty-four million, four hundred seventy-four thousand, two hundred ninety-one".