1133445778 has 8 divisors (see below), whose sum is σ = 1700613180. Its totient is φ = 566574720.

The previous prime is 1133445769. The next prime is 1133445809. The reversal of 1133445778 is 8775443311.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1114024129 + 19421649 = 33377^2 + 4407^2 .

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

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64263 + ... + 79978.

Almost surely, 2^1133445778 is an apocalyptic number.

1133445778 is a deficient number, since it is larger than the sum of its proper divisors (567167402).

1133445778 is a wasteful number, since it uses less digits than its factorization.

1133445778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148172.

The product of its digits is 282240, while the sum is 43.

The square root of 1133445778 is about 33666.6864719414. The cubic root of 1133445778 is about 1042.6380812640.

The spelling of 1133445778 in words is "one billion, one hundred thirty-three million, four hundred forty-five thousand, seven hundred seventy-eight".