1111261604 has 12 divisors (see below), whose sum is σ = 1952778828. Its totient is φ = 553324800.

The previous prime is 1111261597. The next prime is 1111261631. The reversal of 1111261604 is 4061621111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 977812900 + 133448704 = 31270^2 + 11552^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1111261604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575417 + ... + 577344.

It is an arithmetic number, because the mean of its divisors is an integer number (162731569).

Almost surely, 2^1111261604 is an apocalyptic number.

It is an amenable number.

1111261604 is a deficient number, since it is larger than the sum of its proper divisors (841517224).

1111261604 is a wasteful number, since it uses less digits than its factorization.

1111261604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153006 (or 1153004 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1111261604 is about 33335.5906502345. The cubic root of 1111261604 is about 1035.7909281799.

Adding to 1111261604 its reverse (4061621111), we get a palindrome (5172882715).

The spelling of 1111261604 in words is "one billion, one hundred eleven million, two hundred sixty-one thousand, six hundred four".