164843975 has 12 divisors (see below), whose sum is σ = 211455960. Its totient is φ = 127327200.

The previous prime is 164843971. The next prime is 164843977. The reversal of 164843975 is 579348461.

It is not a de Polignac number, because 164843975 - 2² = 164843971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164843971) 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, 112961 + ... + 114410.

It is an arithmetic number, because the mean of its divisors is an integer number (17621330).

Almost surely, 2^164843975 is an apocalyptic number.

164843975 is a deficient number, since it is larger than the sum of its proper divisors (46611985).

164843975 is a wasteful number, since it uses less digits than its factorization.

164843975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227410 (or 227405 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 164843975 is about 12839.1578773687. The cubic root of 164843975 is about 548.3077185112.

The spelling of 164843975 in words is "one hundred sixty-four million, eight hundred forty-three thousand, nine hundred seventy-five".