1130536861 has 4 divisors (see below), whose sum is σ = 1167005824. Its totient is φ = 1094067900.

The previous prime is 1130536853. The next prime is 1130536877. The reversal of 1130536861 is 1686350311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1686350311 = 2617 ⋅644383.

It is a cyclic number.

It is not a de Polignac number, because 1130536861 - 2³ = 1130536853 is a prime.

It is a super-2 number, since 2×1130536861² = 2556227188159466642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130536361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18234435 + ... + 18234496.

It is an arithmetic number, because the mean of its divisors is an integer number (291751456).

Almost surely, 2^1130536861 is an apocalyptic number.

It is an amenable number.

1130536861 is a deficient number, since it is larger than the sum of its proper divisors (36468963).

1130536861 is an equidigital number, since it uses as much as digits as its factorization.

1130536861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36468962.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1130536861 is about 33623.4570054895. The cubic root of 1130536861 is about 1041.7453621982.

The spelling of 1130536861 in words is "one billion, one hundred thirty million, five hundred thirty-six thousand, eight hundred sixty-one".