1134818561 has 4 divisors (see below), whose sum is σ = 1201572612. Its totient is φ = 1068064512.

The previous prime is 1134818549. The next prime is 1134818591. The reversal of 1134818561 is 1658184311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 938258161 + 196560400 = 30631^2 + 14020^2 .

It is a cyclic number.

It is not a de Polignac number, because 1134818561 - 2³⁰ = 61076737 is a prime.

It is a super-2 number, since 2×1134818561² = 2575626332780221442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1134818501) 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, 33377000 + ... + 33377033.

It is an arithmetic number, because the mean of its divisors is an integer number (300393153).

Almost surely, 2^1134818561 is an apocalyptic number.

It is an amenable number.

1134818561 is a deficient number, since it is larger than the sum of its proper divisors (66754051).

1134818561 is an equidigital number, since it uses as much as digits as its factorization.

1134818561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66754050.

The product of its digits is 23040, while the sum is 38.

The square root of 1134818561 is about 33687.0681567868. The cubic root of 1134818561 is about 1043.0588449209.

The spelling of 1134818561 in words is "one billion, one hundred thirty-four million, eight hundred eighteen thousand, five hundred sixty-one".