1117228445 has 4 divisors (see below), whose sum is σ = 1340674140. Its totient is φ = 893782752.

The previous prime is 1117228403. The next prime is 1117228459. The reversal of 1117228445 is 5448227111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5448227111 = 373 ⋅14606507.

It can be written as a sum of positive squares in 2 ways, for example, as 304921444 + 812307001 = 17462^2 + 28501^2 .

It is a cyclic number.

It is not a de Polignac number, because 1117228445 - 2¹² = 1117224349 is a prime.

It is a Curzon number.

It is a congruent number.

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, 111722840 + ... + 111722849.

It is an arithmetic number, because the mean of its divisors is an integer number (335168535).

Almost surely, 2^1117228445 is an apocalyptic number.

It is an amenable number.

1117228445 is a deficient number, since it is larger than the sum of its proper divisors (223445695).

1117228445 is an equidigital number, since it uses as much as digits as its factorization.

1117228445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223445694.

The product of its digits is 17920, while the sum is 35.

The square root of 1117228445 is about 33424.9673896625. The cubic root of 1117228445 is about 1037.6414888083.

The spelling of 1117228445 in words is "one billion, one hundred seventeen million, two hundred twenty-eight thousand, four hundred forty-five".