1115136551 has 2 divisors, whose sum is σ = 1115136552. Its totient is φ = 1115136550.

The previous prime is 1115136511. The next prime is 1115136553. The reversal of 1115136551 is 1556315111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1115136551 - 2²² = 1110942247 is a prime.

Together with 1115136553, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115136553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557568275 + 557568276.

It is an arithmetic number, because the mean of its divisors is an integer number (557568276).

Almost surely, 2^1115136551 is an apocalyptic number.

1115136551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115136551 is an equidigital number, since it uses as much as digits as its factorization.

1115136551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2250, while the sum is 29.

The square root of 1115136551 is about 33393.6603414480. The cubic root of 1115136551 is about 1036.9934589482.

The spelling of 1115136551 in words is "one billion, one hundred fifteen million, one hundred thirty-six thousand, five hundred fifty-one".