1135507863 has 32 divisors (see below), whose sum is σ = 1762442752. Its totient is φ = 636854400.

The previous prime is 1135507831. The next prime is 1135507871. The reversal of 1135507863 is 3687055311.

It is a happy number.

It is not a de Polignac number, because 1135507863 - 2⁵ = 1135507831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135507823) 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, 1038345 + ... + 1039437.

It is an arithmetic number, because the mean of its divisors is an integer number (55076336).

Almost surely, 2^1135507863 is an apocalyptic number.

1135507863 is a deficient number, since it is larger than the sum of its proper divisors (626934889).

1135507863 is a wasteful number, since it uses less digits than its factorization.

1135507863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 1135507863 is about 33697.2975622675. The cubic root of 1135507863 is about 1043.2699908693.

The spelling of 1135507863 in words is "one billion, one hundred thirty-five million, five hundred seven thousand, eight hundred sixty-three".