1130228761 has 4 divisors (see below), whose sum is σ = 1132588800. Its totient is φ = 1127868724.

The previous prime is 1130228611. The next prime is 1130228773. The reversal of 1130228761 is 1678220311.

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: 1678220311 = 13033 ⋅128767.

It is a cyclic number.

It is not a de Polignac number, because 1130228761 - 2¹⁵ = 1130195993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1130228791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1179301 + ... + 1180258.

It is an arithmetic number, because the mean of its divisors is an integer number (283147200).

Almost surely, 2^1130228761 is an apocalyptic number.

It is an amenable number.

1130228761 is a deficient number, since it is larger than the sum of its proper divisors (2360039).

1130228761 is an equidigital number, since it uses as much as digits as its factorization.

1130228761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360038.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1130228761 is about 33618.8750704125. The cubic root of 1130228761 is about 1041.6507195795.

The spelling of 1130228761 in words is "one billion, one hundred thirty million, two hundred twenty-eight thousand, seven hundred sixty-one".