168944507 has 2 divisors, whose sum is σ = 168944508. Its totient is φ = 168944506.

The previous prime is 168944497. The next prime is 168944519. The reversal of 168944507 is 705449861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168944507 - 2¹² = 168940411 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (168944537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84472253 + 84472254.

It is an arithmetic number, because the mean of its divisors is an integer number (84472254).

Almost surely, 2^168944507 is an apocalyptic number.

168944507 is a deficient number, since it is larger than the sum of its proper divisors (1).

168944507 is an equidigital number, since it uses as much as digits as its factorization.

168944507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 168944507 is about 12997.8654786084. The cubic root of 168944507 is about 552.8169602854.

The spelling of 168944507 in words is "one hundred sixty-eight million, nine hundred forty-four thousand, five hundred seven".