117212497 has 2 divisors, whose sum is σ = 117212498. Its totient is φ = 117212496.

The previous prime is 117212471. The next prime is 117212509. The reversal of 117212497 is 794212711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104223681 + 12988816 = 10209^2 + 3604^2 .

It is a cyclic number.

It is not a de Polignac number, because 117212497 - 2⁷ = 117212369 is a prime.

It is not a weakly prime, because it can be changed into another prime (117212437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58606248 + 58606249.

It is an arithmetic number, because the mean of its divisors is an integer number (58606249).

Almost surely, 2^117212497 is an apocalyptic number.

It is an amenable number.

117212497 is a deficient number, since it is larger than the sum of its proper divisors (1).

117212497 is an equidigital number, since it uses as much as digits as its factorization.

117212497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 34.

The square root of 117212497 is about 10826.4720477171. The cubic root of 117212497 is about 489.3932473200.

The spelling of 117212497 in words is "one hundred seventeen million, two hundred twelve thousand, four hundred ninety-seven".