1125211444 has 24 divisors (see below), whose sum is σ = 2302760768. Its totient is φ = 471018240.

The previous prime is 1125211411. The next prime is 1125211459. The reversal of 1125211444 is 4441125211.

It is a super-2 number, since 2×1125211444² = 2532201587417130272, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 466077 + ... + 468484.

Almost surely, 2^1125211444 is an apocalyptic number.

1125211444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1125211444 is an abundant number, since it is smaller than the sum of its proper divisors (1177549324).

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

1125211444 is a wasteful number, since it uses less digits than its factorization.

1125211444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934615 (or 934613 counting only the distinct ones).

The product of its digits is 1280, while the sum is 25.

The square root of 1125211444 is about 33544.1715354546. The cubic root of 1125211444 is about 1040.1070661470.

Adding to 1125211444 its reverse (4441125211), we get a palindrome (5566336655).

The spelling of 1125211444 in words is "one billion, one hundred twenty-five million, two hundred eleven thousand, four hundred forty-four".