1115214445 has 4 divisors (see below), whose sum is σ = 1338257340. Its totient is φ = 892171552.

The previous prime is 1115214437. The next prime is 1115214469. The reversal of 1115214445 is 5444125111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 878885316 + 236329129 = 29646^2 + 15373^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115214445 - 2³ = 1115214437 is a prime.

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, 111521440 + ... + 111521449.

It is an arithmetic number, because the mean of its divisors is an integer number (334564335).

Almost surely, 2^1115214445 is an apocalyptic number.

It is an amenable number.

1115214445 is a deficient number, since it is larger than the sum of its proper divisors (223042895).

1115214445 is an equidigital number, since it uses as much as digits as its factorization.

1115214445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223042894.

The product of its digits is 3200, while the sum is 28.

The square root of 1115214445 is about 33394.8266203015. The cubic root of 1115214445 is about 1037.0176035810.

Adding to 1115214445 its reverse (5444125111), we get a palindrome (6559339556).

The spelling of 1115214445 in words is "one billion, one hundred fifteen million, two hundred fourteen thousand, four hundred forty-five".