164881497 has 12 divisors (see below), whose sum is σ = 241645040. Its totient is φ = 99927960.

The previous prime is 164881477. The next prime is 164881511. The reversal of 164881497 is 794188461.

It is not a de Polignac number, because 164881497 - 2⁷ = 164881369 is a prime.

It is a super-2 number, since 2×164881497² = 54371816105922018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164881417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226747 + ... + 227472.

Almost surely, 2^164881497 is an apocalyptic number.

It is an amenable number.

164881497 is a deficient number, since it is larger than the sum of its proper divisors (76763543).

164881497 is a wasteful number, since it uses less digits than its factorization.

164881497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454244 (or 454233 counting only the distinct ones).

The product of its digits is 387072, while the sum is 48.

The square root of 164881497 is about 12840.6190271342. The cubic root of 164881497 is about 548.3493175271.

The spelling of 164881497 in words is "one hundred sixty-four million, eight hundred eighty-one thousand, four hundred ninety-seven".