164481757 has 8 divisors (see below), whose sum is σ = 179528832. Its totient is φ = 149450400.

The previous prime is 164481743. The next prime is 164481781. The reversal of 164481757 is 757184461.

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

It is not a de Polignac number, because 164481757 - 2²³ = 156093149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164481857) 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 7 ways as a sum of consecutive naturals, for example, 33532 + ... + 38122.

It is an arithmetic number, because the mean of its divisors is an integer number (22441104).

Almost surely, 2^164481757 is an apocalyptic number.

It is an amenable number.

164481757 is a deficient number, since it is larger than the sum of its proper divisors (15047075).

164481757 is a wasteful number, since it uses less digits than its factorization.

164481757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7859.

The product of its digits is 188160, while the sum is 43.

The square root of 164481757 is about 12825.0441324777. The cubic root of 164481757 is about 547.9058181245.

The spelling of 164481757 in words is "one hundred sixty-four million, four hundred eighty-one thousand, seven hundred fifty-seven".