168168037 has 2 divisors, whose sum is σ = 168168038. Its totient is φ = 168168036.

The previous prime is 168168017. The next prime is 168168047. The reversal of 168168037 is 730861861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141943396 + 26224641 = 11914^2 + 5121^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168168037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168168017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84084018 + 84084019.

It is an arithmetic number, because the mean of its divisors is an integer number (84084019).

Almost surely, 2^168168037 is an apocalyptic number.

It is an amenable number.

168168037 is a deficient number, since it is larger than the sum of its proper divisors (1).

168168037 is an equidigital number, since it uses as much as digits as its factorization.

168168037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 168168037 is about 12967.9619447313. The cubic root of 168168037 is about 551.9687427603.

The spelling of 168168037 in words is "one hundred sixty-eight million, one hundred sixty-eight thousand, thirty-seven".