116520251 has 2 divisors, whose sum is σ = 116520252. Its totient is φ = 116520250.

The previous prime is 116520247. The next prime is 116520259. The reversal of 116520251 is 152025611.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 116520251 - 2² = 116520247 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (116520259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58260125 + 58260126.

It is an arithmetic number, because the mean of its divisors is an integer number (58260126).

Almost surely, 2^116520251 is an apocalyptic number.

116520251 is a deficient number, since it is larger than the sum of its proper divisors (1).

116520251 is an equidigital number, since it uses as much as digits as its factorization.

116520251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 116520251 is about 10794.4546411572. The cubic root of 116520251 is about 488.4279075631.

Adding to 116520251 its reverse (152025611), we get a palindrome (268545862).

The spelling of 116520251 in words is "one hundred sixteen million, five hundred twenty thousand, two hundred fifty-one".