117951990133 has 2 divisors, whose sum is σ = 117951990134. Its totient is φ = 117951990132.

The previous prime is 117951990097. The next prime is 117951990161. The reversal of 117951990133 is 331099159711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87904541169 + 30047448964 = 296487^2 + 173342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117951990133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117951990173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58975995066 + 58975995067.

It is an arithmetic number, because the mean of its divisors is an integer number (58975995067).

Almost surely, 2^117951990133 is an apocalyptic number.

It is an amenable number.

117951990133 is a deficient number, since it is larger than the sum of its proper divisors (1).

117951990133 is an equidigital number, since it uses as much as digits as its factorization.

117951990133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 229635, while the sum is 49.

The spelling of 117951990133 in words is "one hundred seventeen billion, nine hundred fifty-one million, nine hundred ninety thousand, one hundred thirty-three".