164570047 has 4 divisors (see below), whose sum is σ = 174250656. Its totient is φ = 154889440.

The previous prime is 164570033. The next prime is 164570051. The reversal of 164570047 is 740075461.

It is a happy number.

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 164570047 - 2¹⁵ = 164537279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164569994 and 164570021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164570347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4840279 + ... + 4840312.

It is an arithmetic number, because the mean of its divisors is an integer number (43562664).

Almost surely, 2^164570047 is an apocalyptic number.

164570047 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

164570047 is a deficient number, since it is larger than the sum of its proper divisors (9680609).

164570047 is an equidigital number, since it uses as much as digits as its factorization.

164570047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9680608.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 164570047 is about 12828.4857641111. The cubic root of 164570047 is about 548.0038349759.

The spelling of 164570047 in words is "one hundred sixty-four million, five hundred seventy thousand, forty-seven".