1121579522 has 54 divisors (see below), whose sum is σ = 2089433097. Its totient is φ = 450128448.

The previous prime is 1121579507. The next prime is 1121579593. The reversal of 1121579522 is 2259751211.

It can be written as a sum of positive squares in 2 ways, for example, as 1026497521 + 95082001 = 32039^2 + 9751^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=23681.

It is a Duffinian number.

Its product of digits (12600) is a multiple of the sum of its prime divisors (225).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5635979 + ... + 5636177.

Almost surely, 2^1121579522 is an apocalyptic number.

1121579522 is a deficient number, since it is larger than the sum of its proper divisors (967853575).

1121579522 is an equidigital number, since it uses as much as digits as its factorization.

1121579522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448 (or 225 counting only the distinct ones).

The product of its digits is 12600, while the sum is 35.

The square root of 1121579522 is about 33489.9913705573. The cubic root of 1121579522 is about 1038.9867850203.

The spelling of 1121579522 in words is "one billion, one hundred twenty-one million, five hundred seventy-nine thousand, five hundred twenty-two".