168964541 has 2 divisors, whose sum is σ = 168964542. Its totient is φ = 168964540.

The previous prime is 168964531. The next prime is 168964589. The reversal of 168964541 is 145469861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162052900 + 6911641 = 12730^2 + 2629^2 .

It is a cyclic number.

It is not a de Polignac number, because 168964541 - 2²² = 164770237 is a prime.

It is a super-2 number, since 2×168964541² = 57098032230681362, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 168964492 and 168964501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168964531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84482270 + 84482271.

It is an arithmetic number, because the mean of its divisors is an integer number (84482271).

Almost surely, 2^168964541 is an apocalyptic number.

It is an amenable number.

168964541 is a deficient number, since it is larger than the sum of its proper divisors (1).

168964541 is an equidigital number, since it uses as much as digits as its factorization.

168964541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 44.

The square root of 168964541 is about 12998.6361207628. The cubic root of 168964541 is about 552.8388110446.

The spelling of 168964541 in words is "one hundred sixty-eight million, nine hundred sixty-four thousand, five hundred forty-one".