164865933 has 6 divisors (see below), whose sum is σ = 238139694. Its totient is φ = 109910616.

The previous prime is 164865929. The next prime is 164865941. The reversal of 164865933 is 339568461.

164865933 is a `hidden beast` number, since 16 + 48 + 6 + 593 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 91814724 + 73051209 = 9582^2 + 8547^2 .

It is not a de Polignac number, because 164865933 - 2² = 164865929 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164865973) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9159210 + ... + 9159227.

It is an arithmetic number, because the mean of its divisors is an integer number (39689949).

Almost surely, 2^164865933 is an apocalyptic number.

It is an amenable number.

164865933 is a deficient number, since it is larger than the sum of its proper divisors (73273761).

164865933 is a wasteful number, since it uses less digits than its factorization.

164865933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18318443 (or 18318440 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 164865933 is about 12840.0129672832. The cubic root of 164865933 is about 548.3320631606.

The spelling of 164865933 in words is "one hundred sixty-four million, eight hundred sixty-five thousand, nine hundred thirty-three".