97318253 has 2 divisors, whose sum is σ = 97318254. Its totient is φ = 97318252.

The previous prime is 97318223. The next prime is 97318259. The reversal of 97318253 is 35281379.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95687524 + 1630729 = 9782^2 + 1277^2 .

It is a cyclic number.

It is not a de Polignac number, because 97318253 - 2¹⁰ = 97317229 is a prime.

It is equal to p_5615795 and since 97318253 and 5615795 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97318259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48659126 + 48659127.

It is an arithmetic number, because the mean of its divisors is an integer number (48659127).

Almost surely, 2^97318253 is an apocalyptic number.

It is an amenable number.

97318253 is a deficient number, since it is larger than the sum of its proper divisors (1).

97318253 is an equidigital number, since it uses as much as digits as its factorization.

97318253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

The square root of 97318253 is about 9865.0014191585. The cubic root of 97318253 is about 459.9720414639.

The spelling of 97318253 in words is "ninety-seven million, three hundred eighteen thousand, two hundred fifty-three".