1134223781 has 8 divisors (see below), whose sum is σ = 1139733624. Its totient is φ = 1128726720.

The previous prime is 1134223759. The next prime is 1134223819. The reversal of 1134223781 is 1873224311.

It can be written as a sum of positive squares in 4 ways, for example, as 18062500 + 1116161281 = 4250^2 + 33409^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1134223781 - 2¹⁰ = 1134222757 is a prime.

It is a super-2 number, since 2×1134223781² = 2572927170771871922, 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 (1134223711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206831 + ... + 212243.

It is an arithmetic number, because the mean of its divisors is an integer number (142466703).

Almost surely, 2^1134223781 is an apocalyptic number.

It is an amenable number.

1134223781 is a deficient number, since it is larger than the sum of its proper divisors (5509843).

1134223781 is an equidigital number, since it uses as much as digits as its factorization.

1134223781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6391.

The product of its digits is 8064, while the sum is 32.

The square root of 1134223781 is about 33678.2389830585. The cubic root of 1134223781 is about 1042.8765840794.

The spelling of 1134223781 in words is "one billion, one hundred thirty-four million, two hundred twenty-three thousand, seven hundred eighty-one".