1115084551 has 32 divisors (see below), whose sum is σ = 1359912960. Its totient is φ = 893746656.

The previous prime is 1115084533. The next prime is 1115084569. The reversal of 1115084551 is 1554805111.

It is an interprime number because it is at equal distance from previous prime (1115084533) and next prime (1115084569).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1115084551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115084501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1801120 + ... + 1801738.

It is an arithmetic number, because the mean of its divisors is an integer number (42497280).

Almost surely, 2^1115084551 is an apocalyptic number.

1115084551 is a deficient number, since it is larger than the sum of its proper divisors (244828409).

1115084551 is a wasteful number, since it uses less digits than its factorization.

1115084551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883.

The product of its (nonzero) digits is 4000, while the sum is 31.

The square root of 1115084551 is about 33392.8817414730. The cubic root of 1115084551 is about 1036.9773399960.

Adding to 1115084551 its reverse (1554805111), we get a palindrome (2669889662).

The spelling of 1115084551 in words is "one billion, one hundred fifteen million, eighty-four thousand, five hundred fifty-one".