164950693 has 2 divisors, whose sum is σ = 164950694. Its totient is φ = 164950692.

The previous prime is 164950627. The next prime is 164950697. The reversal of 164950693 is 396059461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162996289 + 1954404 = 12767^2 + 1398^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164950693 is a prime.

It is a super-2 number, since 2×164950693² = 54417462242360498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164950697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82475346 + 82475347.

It is an arithmetic number, because the mean of its divisors is an integer number (82475347).

Almost surely, 2^164950693 is an apocalyptic number.

It is an amenable number.

164950693 is a deficient number, since it is larger than the sum of its proper divisors (1).

164950693 is an equidigital number, since it uses as much as digits as its factorization.

164950693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 164950693 is about 12843.3131628875. The cubic root of 164950693 is about 548.4260155868.

The spelling of 164950693 in words is "one hundred sixty-four million, nine hundred fifty thousand, six hundred ninety-three".