1122001554 has 16 divisors (see below), whose sum is σ = 2246175360. Its totient is φ = 373638480.

The previous prime is 1122001549. The next prime is 1122001567. The reversal of 1122001554 is 4551002211.

1122001554 is a modest number, since divided by 1554 gives 1122 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 1122001554.

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 7 ways as a sum of consecutive naturals, for example, 83757 + ... + 96224.

It is an arithmetic number, because the mean of its divisors is an integer number (140385960).

Almost surely, 2^1122001554 is an apocalyptic number.

1122001554 is an abundant number, since it is smaller than the sum of its proper divisors (1124173806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122001554 is a wasteful number, since it uses less digits than its factorization.

1122001554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181025.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1122001554 is about 33496.2916454941. The cubic root of 1122001554 is about 1039.1170865803.

Adding to 1122001554 its reverse (4551002211), we get a palindrome (5673003765).

The spelling of 1122001554 in words is "one billion, one hundred twenty-two million, one thousand, five hundred fifty-four".