1115482591 has 4 divisors (see below), whose sum is σ = 1181099232. Its totient is φ = 1049865952.

The previous prime is 1115482583. The next prime is 1115482603. The reversal of 1115482591 is 1952845111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1115482591 - 2³ = 1115482583 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1115482591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115482541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32808295 + ... + 32808328.

It is an arithmetic number, because the mean of its divisors is an integer number (295274808).

Almost surely, 2^1115482591 is an apocalyptic number.

1115482591 is a deficient number, since it is larger than the sum of its proper divisors (65616641).

1115482591 is an equidigital number, since it uses as much as digits as its factorization.

1115482591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65616640.

The product of its digits is 14400, while the sum is 37.

The square root of 1115482591 is about 33398.8411625314. The cubic root of 1115482591 is about 1037.1007116145.

The spelling of 1115482591 in words is "one billion, one hundred fifteen million, four hundred eighty-two thousand, five hundred ninety-one".