1131086451 has 16 divisors (see below), whose sum is σ = 1646807040. Its totient is φ = 684844320.

The previous prime is 1131086447. The next prime is 1131086459. The reversal of 1131086451 is 1546801311.

It is not a de Polignac number, because 1131086451 - 2² = 1131086447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131086459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19246 + ... + 51308.

It is an arithmetic number, because the mean of its divisors is an integer number (102925440).

Almost surely, 2^1131086451 is an apocalyptic number.

1131086451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1131086451 is a deficient number, since it is larger than the sum of its proper divisors (515720589).

1131086451 is a wasteful number, since it uses less digits than its factorization.

1131086451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33146.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 1131086451 is about 33631.6287295159. The cubic root of 1131086451 is about 1041.9141433920.

Adding to 1131086451 its reverse (1546801311), we get a palindrome (2677887762).

The spelling of 1131086451 in words is "one billion, one hundred thirty-one million, eighty-six thousand, four hundred fifty-one".