1130270781 has 8 divisors (see below), whose sum is σ = 1542075040. Its totient is φ = 735990192.

The previous prime is 1130270767. The next prime is 1130270831. The reversal of 1130270781 is 1870720311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1130270781 - 2⁵ = 1130270749 is a prime.

It is a super-2 number, since 2×1130270781² = 2555024076764699922, which contains 22 as substring.

It is the 33620-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130270731) by changing a digit.

It is a nontrivial repunit in base 33619.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4380766 + ... + 4381023.

It is an arithmetic number, because the mean of its divisors is an integer number (192759380).

Almost surely, 2^1130270781 is an apocalyptic number.

It is an amenable number.

1130270781 is a deficient number, since it is larger than the sum of its proper divisors (411804259).

1130270781 is an equidigital number, since it uses as much as digits as its factorization.

1130270781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8761835.

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 1130270781 is about 33619.5000111542. The cubic root of 1130270781 is about 1041.6636283588.

The spelling of 1130270781 in words is "one billion, one hundred thirty million, two hundred seventy thousand, seven hundred eighty-one".