168761113 has 2 divisors, whose sum is σ = 168761114. Its totient is φ = 168761112.

The previous prime is 168761083. The next prime is 168761129. The reversal of 168761113 is 311167861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88962624 + 79798489 = 9432^2 + 8933^2 .

It is a cyclic number.

It is not a de Polignac number, because 168761113 - 2⁹ = 168760601 is a prime.

It is not a weakly prime, because it can be changed into another prime (168761183) 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, 84380556 + 84380557.

It is an arithmetic number, because the mean of its divisors is an integer number (84380557).

Almost surely, 2^168761113 is an apocalyptic number.

It is an amenable number.

168761113 is a deficient number, since it is larger than the sum of its proper divisors (1).

168761113 is an equidigital number, since it uses as much as digits as its factorization.

168761113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 34.

The square root of 168761113 is about 12990.8087892941. The cubic root of 168761113 is about 552.6168550904.

The spelling of 168761113 in words is "one hundred sixty-eight million, seven hundred sixty-one thousand, one hundred thirteen".