1115600491 has 2 divisors, whose sum is σ = 1115600492. Its totient is φ = 1115600490.

The previous prime is 1115600477. The next prime is 1115600587. The reversal of 1115600491 is 1940065111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1115600491 - 2⁵ = 1115600459 is a prime.

It is not a weakly prime, because it can be changed into another prime (1115600411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557800245 + 557800246.

It is an arithmetic number, because the mean of its divisors is an integer number (557800246).

Almost surely, 2^1115600491 is an apocalyptic number.

1115600491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115600491 is an equidigital number, since it uses as much as digits as its factorization.

1115600491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 1115600491 is about 33400.6061471944. The cubic root of 1115600491 is about 1037.1372488249.

The spelling of 1115600491 in words is "one billion, one hundred fifteen million, six hundred thousand, four hundred ninety-one".