97223251 has 2 divisors, whose sum is σ = 97223252. Its totient is φ = 97223250.

The previous prime is 97223249. The next prime is 97223257. The reversal of 97223251 is 15232279.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97223251 - 2¹ = 97223249 is a prime.

Together with 97223249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (97223257) 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, 48611625 + 48611626.

It is an arithmetic number, because the mean of its divisors is an integer number (48611626).

Almost surely, 2^97223251 is an apocalyptic number.

97223251 is a deficient number, since it is larger than the sum of its proper divisors (1).

97223251 is an equidigital number, since it uses as much as digits as its factorization.

97223251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 31.

The square root of 97223251 is about 9860.1851402496. The cubic root of 97223251 is about 459.8223179549.

The spelling of 97223251 in words is "ninety-seven million, two hundred twenty-three thousand, two hundred fifty-one".