168935453 has 2 divisors, whose sum is σ = 168935454. Its totient is φ = 168935452.

The previous prime is 168935419. The next prime is 168935471. The reversal of 168935453 is 354539861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160858489 + 8076964 = 12683^2 + 2842^2 .

It is a cyclic number.

It is not a de Polignac number, because 168935453 - 2¹⁰ = 168934429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168938453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84467726 + 84467727.

It is an arithmetic number, because the mean of its divisors is an integer number (84467727).

Almost surely, 2^168935453 is an apocalyptic number.

It is an amenable number.

168935453 is a deficient number, since it is larger than the sum of its proper divisors (1).

168935453 is an equidigital number, since it uses as much as digits as its factorization.

168935453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 44.

The square root of 168935453 is about 12997.5171859859. The cubic root of 168935453 is about 552.8070846675.

The spelling of 168935453 in words is "one hundred sixty-eight million, nine hundred thirty-five thousand, four hundred fifty-three".