165336473 has 2 divisors, whose sum is σ = 165336474. Its totient is φ = 165336472.

The previous prime is 165336463. The next prime is 165336497. The reversal of 165336473 is 374633561.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101767744 + 63568729 = 10088^2 + 7973^2 .

It is a cyclic number.

It is not a de Polignac number, because 165336473 - 2¹⁰ = 165335449 is a prime.

It is a super-2 number, since 2×165336473² = 54672298608159458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (165336433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82668236 + 82668237.

It is an arithmetic number, because the mean of its divisors is an integer number (82668237).

Almost surely, 2^165336473 is an apocalyptic number.

It is an amenable number.

165336473 is a deficient number, since it is larger than the sum of its proper divisors (1).

165336473 is an equidigital number, since it uses as much as digits as its factorization.

165336473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 38.

The square root of 165336473 is about 12858.3231021778. The cubic root of 165336473 is about 548.8532282281.

The spelling of 165336473 in words is "one hundred sixty-five million, three hundred thirty-six thousand, four hundred seventy-three".