115611787 has 2 divisors, whose sum is σ = 115611788. Its totient is φ = 115611786.

The previous prime is 115611773. The next prime is 115611799. The reversal of 115611787 is 787116511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115611787 - 2¹⁵ = 115579019 is a prime.

It is not a weakly prime, because it can be changed into another prime (115611757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57805893 + 57805894.

It is an arithmetic number, because the mean of its divisors is an integer number (57805894).

Almost surely, 2^115611787 is an apocalyptic number.

115611787 is a deficient number, since it is larger than the sum of its proper divisors (1).

115611787 is an equidigital number, since it uses as much as digits as its factorization.

115611787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 37.

The square root of 115611787 is about 10752.2921742296. The cubic root of 115611787 is about 487.1552321910.

The spelling of 115611787 in words is "one hundred fifteen million, six hundred eleven thousand, seven hundred eighty-seven".