168951473 has 2 divisors, whose sum is σ = 168951474. Its totient is φ = 168951472.

The previous prime is 168951451. The next prime is 168951479. The reversal of 168951473 is 374159861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121727089 + 47224384 = 11033^2 + 6872^2 .

It is a cyclic number.

It is not a de Polignac number, because 168951473 - 2²² = 164757169 is a prime.

It is not a weakly prime, because it can be changed into another prime (168951479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84475736 + 84475737.

It is an arithmetic number, because the mean of its divisors is an integer number (84475737).

Almost surely, 2^168951473 is an apocalyptic number.

It is an amenable number.

168951473 is a deficient number, since it is larger than the sum of its proper divisors (1).

168951473 is an equidigital number, since it uses as much as digits as its factorization.

168951473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 44.

The square root of 168951473 is about 12998.1334429217. The cubic root of 168951473 is about 552.8245581846.

The spelling of 168951473 in words is "one hundred sixty-eight million, nine hundred fifty-one thousand, four hundred seventy-three".