168756053 has 2 divisors, whose sum is σ = 168756054. Its totient is φ = 168756052.

The previous prime is 168756031. The next prime is 168756067. The reversal of 168756053 is 350657861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168532324 + 223729 = 12982^2 + 473^2 .

It is a cyclic number.

It is not a de Polignac number, because 168756053 - 2¹⁰ = 168755029 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 168756053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168756253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84378026 + 84378027.

It is an arithmetic number, because the mean of its divisors is an integer number (84378027).

Almost surely, 2^168756053 is an apocalyptic number.

It is an amenable number.

168756053 is a deficient number, since it is larger than the sum of its proper divisors (1).

168756053 is an equidigital number, since it uses as much as digits as its factorization.

168756053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 168756053 is about 12990.6140347560. The cubic root of 168756053 is about 552.6113319593.

The spelling of 168756053 in words is "one hundred sixty-eight million, seven hundred fifty-six thousand, fifty-three".