1133221345 has 8 divisors (see below), whose sum is σ = 1393033320. Its totient is φ = 884465280.

The previous prime is 1133221333. The next prime is 1133221373. The reversal of 1133221345 is 5431223311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42042256 + 1091179089 = 6484^2 + 33033^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-1133221345 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2763750 + ... + 2764159.

It is an arithmetic number, because the mean of its divisors is an integer number (174129165).

Almost surely, 2^1133221345 is an apocalyptic number.

It is an amenable number.

1133221345 is a deficient number, since it is larger than the sum of its proper divisors (259811975).

1133221345 is an equidigital number, since it uses as much as digits as its factorization.

1133221345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5527955.

The product of its digits is 2160, while the sum is 25.

The square root of 1133221345 is about 33663.3531455201. The cubic root of 1133221345 is about 1042.5692593160.

Adding to 1133221345 its reverse (5431223311), we get a palindrome (6564444656).

The spelling of 1133221345 in words is "one billion, one hundred thirty-three million, two hundred twenty-one thousand, three hundred forty-five".