97412281 has 2 divisors, whose sum is σ = 97412282. Its totient is φ = 97412280.

The previous prime is 97412267. The next prime is 97412339. The reversal of 97412281 is 18221479.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66275881 + 31136400 = 8141^2 + 5580^2 .

It is an emirp because it is prime and its reverse (18221479) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97412281 is a prime.

It is a super-2 number, since 2×97412281² = 18978304979245922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97412201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48706140 + 48706141.

It is an arithmetic number, because the mean of its divisors is an integer number (48706141).

Almost surely, 2^97412281 is an apocalyptic number.

It is an amenable number.

97412281 is a deficient number, since it is larger than the sum of its proper divisors (1).

97412281 is an equidigital number, since it uses as much as digits as its factorization.

97412281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 34.

The square root of 97412281 is about 9869.7660053316. The cubic root of 97412281 is about 460.1201340294.

The spelling of 97412281 in words is "ninety-seven million, four hundred twelve thousand, two hundred eighty-one".