164796281 has 8 divisors (see below), whose sum is σ = 177777600. Its totient is φ = 151858512.

The previous prime is 164796271. The next prime is 164796287. The reversal of 164796281 is 182697461.

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

It is a de Polignac number, because none of the positive numbers 2^k-164796281 is a prime.

It is a super-2 number, since 2×164796281² = 54315628462861922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164796287) 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, 2795 + ... + 18368.

It is an arithmetic number, because the mean of its divisors is an integer number (22222200).

Almost surely, 2^164796281 is an apocalyptic number.

It is an amenable number.

164796281 is a deficient number, since it is larger than the sum of its proper divisors (12981319).

164796281 is a wasteful number, since it uses less digits than its factorization.

164796281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21775.

The product of its digits is 145152, while the sum is 44.

The square root of 164796281 is about 12837.3003781948. The cubic root of 164796281 is about 548.2548331271.

The spelling of 164796281 in words is "one hundred sixty-four million, seven hundred ninety-six thousand, two hundred eighty-one".