164716257 has 8 divisors (see below), whose sum is σ = 219881376. Its totient is φ = 109680992.

The previous prime is 164716243. The next prime is 164716283. The reversal of 164716257 is 752617461.

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

It is a cyclic number.

It is not a de Polignac number, because 164716257 - 2⁸ = 164716001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164716207) 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, 29463 + ... + 34604.

It is an arithmetic number, because the mean of its divisors is an integer number (27485172).

Almost surely, 2^164716257 is an apocalyptic number.

It is an amenable number.

164716257 is a deficient number, since it is larger than the sum of its proper divisors (55165119).

164716257 is an equidigital number, since it uses as much as digits as its factorization.

164716257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64927.

The product of its digits is 70560, while the sum is 39.

The square root of 164716257 is about 12834.1831450233. The cubic root of 164716257 is about 548.1660757677.

The spelling of 164716257 in words is "one hundred sixty-four million, seven hundred sixteen thousand, two hundred fifty-seven".