1133774861 has 2 divisors, whose sum is σ = 1133774862. Its totient is φ = 1133774860.

The previous prime is 1133774813. The next prime is 1133774879. The reversal of 1133774861 is 1684773311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 916212361 + 217562500 = 30269^2 + 14750^2 .

It is a cyclic number.

It is not a de Polignac number, because 1133774861 - 2¹⁸ = 1133512717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1133774801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566887430 + 566887431.

It is an arithmetic number, because the mean of its divisors is an integer number (566887431).

Almost surely, 2^1133774861 is an apocalyptic number.

It is an amenable number.

1133774861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133774861 is an equidigital number, since it uses as much as digits as its factorization.

1133774861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 41.

The square root of 1133774861 is about 33671.5734856570. The cubic root of 1133774861 is about 1042.7389775083.

The spelling of 1133774861 in words is "one billion, one hundred thirty-three million, seven hundred seventy-four thousand, eight hundred sixty-one".