164557859 has 8 divisors (see below), whose sum is σ = 165634560. Its totient is φ = 163485000.

The previous prime is 164557853. The next prime is 164557873. The reversal of 164557859 is 958755461.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164557859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164557853) 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, 157862 + ... + 158900.

It is an arithmetic number, because the mean of its divisors is an integer number (20704320).

Almost surely, 2^164557859 is an apocalyptic number.

164557859 is a deficient number, since it is larger than the sum of its proper divisors (1076701).

164557859 is a wasteful number, since it uses less digits than its factorization.

164557859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921.

The product of its digits is 1512000, while the sum is 50.

The square root of 164557859 is about 12828.0107187358. The cubic root of 164557859 is about 547.9903063180.

The spelling of 164557859 in words is "one hundred sixty-four million, five hundred fifty-seven thousand, eight hundred fifty-nine".