6115691 has 2 divisors, whose sum is σ = 6115692. Its totient is φ = 6115690.

The previous prime is 6115679. The next prime is 6115717. The reversal of 6115691 is 1965116.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6115691 - 2¹⁴ = 6099307 is a prime.

It is not a weakly prime, because it can be changed into another prime (6115661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3057845 + 3057846.

It is an arithmetic number, because the mean of its divisors is an integer number (3057846).

Almost surely, 2^6115691 is an apocalyptic number.

6115691 is a deficient number, since it is larger than the sum of its proper divisors (1).

6115691 is an equidigital number, since it uses as much as digits as its factorization.

6115691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 29.

The square root of 6115691 is about 2472.9923170119. The cubic root of 6115691 is about 182.8725460483.

The spelling of 6115691 in words is "six million, one hundred fifteen thousand, six hundred ninety-one".