116866513 has 2 divisors, whose sum is σ = 116866514. Its totient is φ = 116866512.

The previous prime is 116866499. The next prime is 116866571. The reversal of 116866513 is 315668611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101445184 + 15421329 = 10072^2 + 3927^2 .

It is an emirp because it is prime and its reverse (315668611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 116866513 - 2⁵ = 116866481 is a prime.

It is not a weakly prime, because it can be changed into another prime (116866913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58433256 + 58433257.

It is an arithmetic number, because the mean of its divisors is an integer number (58433257).

Almost surely, 2^116866513 is an apocalyptic number.

It is an amenable number.

116866513 is a deficient number, since it is larger than the sum of its proper divisors (1).

116866513 is an equidigital number, since it uses as much as digits as its factorization.

116866513 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 116866513 is about 10810.4816266437. The cubic root of 116866513 is about 488.9112477856.

The spelling of 116866513 in words is "one hundred sixteen million, eight hundred sixty-six thousand, five hundred thirteen".