168197053 has 2 divisors, whose sum is σ = 168197054. Its totient is φ = 168197052.

The previous prime is 168197027. The next prime is 168197059. The reversal of 168197053 is 350791861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133587364 + 34609689 = 11558^2 + 5883^2 .

It is a cyclic number.

It is not a de Polignac number, because 168197053 - 2⁹ = 168196541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168196997 and 168197015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168197059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84098526 + 84098527.

It is an arithmetic number, because the mean of its divisors is an integer number (84098527).

Almost surely, 2^168197053 is an apocalyptic number.

It is an amenable number.

168197053 is a deficient number, since it is larger than the sum of its proper divisors (1).

168197053 is an equidigital number, since it uses as much as digits as its factorization.

168197053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 168197053 is about 12969.0806536161. The cubic root of 168197053 is about 552.0004868108. Note that the first 3 decimals are identical.

The spelling of 168197053 in words is "one hundred sixty-eight million, one hundred ninety-seven thousand, fifty-three".