164478146 has 8 divisors (see below), whose sum is σ = 281962560. Its totient is φ = 70490628.

The previous prime is 164478131. The next prime is 164478161. The reversal of 164478146 is 641874461.

It is an interprime number because it is at equal distance from previous prime (164478131) and next prime (164478161).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5874206 + ... + 5874233.

It is an arithmetic number, because the mean of its divisors is an integer number (35245320).

Almost surely, 2^164478146 is an apocalyptic number.

164478146 is a deficient number, since it is larger than the sum of its proper divisors (117484414).

164478146 is a wasteful number, since it uses less digits than its factorization.

164478146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11748448.

The product of its digits is 129024, while the sum is 41.

The square root of 164478146 is about 12824.9033524623. The cubic root of 164478146 is about 547.9018085565.

The spelling of 164478146 in words is "one hundred sixty-four million, four hundred seventy-eight thousand, one hundred forty-six".