115618619 has 2 divisors, whose sum is σ = 115618620. Its totient is φ = 115618618.

The previous prime is 115618571. The next prime is 115618663. The reversal of 115618619 is 916816511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115618619 is a prime.

It is a super-2 number, since 2×115618619² = 26735330118934322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115618669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57809309 + 57809310.

It is an arithmetic number, because the mean of its divisors is an integer number (57809310).

Almost surely, 2^115618619 is an apocalyptic number.

115618619 is a deficient number, since it is larger than the sum of its proper divisors (1).

115618619 is an equidigital number, since it uses as much as digits as its factorization.

115618619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 38.

The square root of 115618619 is about 10752.6098692364. The cubic root of 115618619 is about 487.1648280378.

The spelling of 115618619 in words is "one hundred fifteen million, six hundred eighteen thousand, six hundred nineteen".