116561449 has 2 divisors, whose sum is σ = 116561450. Its totient is φ = 116561448.

The previous prime is 116561437. The next prime is 116561479. The reversal of 116561449 is 944165611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102819600 + 13741849 = 10140^2 + 3707^2 .

It is a cyclic number.

It is not a de Polignac number, because 116561449 - 2⁷ = 116561321 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (116561479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58280724 + 58280725.

It is an arithmetic number, because the mean of its divisors is an integer number (58280725).

Almost surely, 2^116561449 is an apocalyptic number.

It is an amenable number.

116561449 is a deficient number, since it is larger than the sum of its proper divisors (1).

116561449 is an equidigital number, since it uses as much as digits as its factorization.

116561449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 37.

The square root of 116561449 is about 10796.3627671545. The cubic root of 116561449 is about 488.4854651741.

The spelling of 116561449 in words is "one hundred sixteen million, five hundred sixty-one thousand, four hundred forty-nine".