116151209 has 2 divisors, whose sum is σ = 116151210. Its totient is φ = 116151208.

The previous prime is 116151187. The next prime is 116151221. The reversal of 116151209 is 902151611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111936400 + 4214809 = 10580^2 + 2053^2 .

It is an emirp because it is prime and its reverse (902151611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 116151209 - 2²⁰ = 115102633 is a prime.

It is a super-2 number, since 2×116151209² = 26982206704323362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (116151229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58075604 + 58075605.

It is an arithmetic number, because the mean of its divisors is an integer number (58075605).

Almost surely, 2^116151209 is an apocalyptic number.

It is an amenable number.

116151209 is a deficient number, since it is larger than the sum of its proper divisors (1).

116151209 is an equidigital number, since it uses as much as digits as its factorization.

116151209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 26.

The square root of 116151209 is about 10777.3470297657. The cubic root of 116151209 is about 487.9117139065.

The spelling of 116151209 in words is "one hundred sixteen million, one hundred fifty-one thousand, two hundred nine".