168012899 has 2 divisors, whose sum is σ = 168012900. Its totient is φ = 168012898.

The previous prime is 168012857. The next prime is 168012913. The reversal of 168012899 is 998210861.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168012899 is a prime.

It is not a weakly prime, because it can be changed into another prime (168032899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84006449 + 84006450.

It is an arithmetic number, because the mean of its divisors is an integer number (84006450).

Almost surely, 2^168012899 is an apocalyptic number.

168012899 is a deficient number, since it is larger than the sum of its proper divisors (1).

168012899 is an equidigital number, since it uses as much as digits as its factorization.

168012899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 44.

The square root of 168012899 is about 12961.9789769927. The cubic root of 168012899 is about 551.7989568842.

The spelling of 168012899 in words is "one hundred sixty-eight million, twelve thousand, eight hundred ninety-nine".