1130561837 has 2 divisors, whose sum is σ = 1130561838. Its totient is φ = 1130561836.

The previous prime is 1130561813. The next prime is 1130561851. The reversal of 1130561837 is 7381650311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 609398596 + 521163241 = 24686^2 + 22829^2 .

It is a cyclic number.

It is not a de Polignac number, because 1130561837 - 2⁸ = 1130561581 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1130561797 and 1130561806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1130561137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565280918 + 565280919.

It is an arithmetic number, because the mean of its divisors is an integer number (565280919).

Almost surely, 2^1130561837 is an apocalyptic number.

It is an amenable number.

1130561837 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130561837 is an equidigital number, since it uses as much as digits as its factorization.

1130561837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1130561837 is about 33623.8284108160. The cubic root of 1130561837 is about 1041.7530336098.

The spelling of 1130561837 in words is "one billion, one hundred thirty million, five hundred sixty-one thousand, eight hundred thirty-seven".