1111225405 has 8 divisors (see below), whose sum is σ = 1333739232. Its totient is φ = 888801168.

The previous prime is 1111225397. The next prime is 1111225429. The reversal of 1111225405 is 5045221111.

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

It is a cyclic number.

It is not a de Polignac number, because 1111225405 - 2³ = 1111225397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8862 + ... + 47968.

It is an arithmetic number, because the mean of its divisors is an integer number (166717404).

Almost surely, 2^1111225405 is an apocalyptic number.

It is an amenable number.

1111225405 is a deficient number, since it is larger than the sum of its proper divisors (222513827).

1111225405 is an equidigital number, since it uses as much as digits as its factorization.

1111225405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44795.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1111225405 is about 33335.0476975810. The cubic root of 1111225405 is about 1035.7796812023.

Adding to 1111225405 its reverse (5045221111), we get a palindrome (6156446516).

The spelling of 1111225405 in words is "one billion, one hundred eleven million, two hundred twenty-five thousand, four hundred five".