1133378369 has 2 divisors, whose sum is σ = 1133378370. Its totient is φ = 1133378368.

The previous prime is 1133378359. The next prime is 1133378371. The reversal of 1133378369 is 9638733311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 722910769 + 410467600 = 26887^2 + 20260^2 .

It is a cyclic number.

It is not a de Polignac number, because 1133378369 - 2¹² = 1133374273 is a prime.

It is a super-2 number, since 2×1133378369² = 2569093054634200322, which contains 22 as substring.

Together with 1133378371, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1133378359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566689184 + 566689185.

It is an arithmetic number, because the mean of its divisors is an integer number (566689185).

Almost surely, 2^1133378369 is an apocalyptic number.

It is an amenable number.

1133378369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133378369 is an equidigital number, since it uses as much as digits as its factorization.

1133378369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 44.

The square root of 1133378369 is about 33665.6853338826. The cubic root of 1133378369 is about 1042.6174113784.

The spelling of 1133378369 in words is "one billion, one hundred thirty-three million, three hundred seventy-eight thousand, three hundred sixty-nine".