1121894132 has 6 divisors (see below), whose sum is σ = 1963314738. Its totient is φ = 560947064.

The previous prime is 1121894119. The next prime is 1121894173. The reversal of 1121894132 is 2314981211.

It can be written as a sum of positive squares in only one way, i.e., 808037476 + 313856656 = 28426^2 + 17716^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140236763 + ... + 140236770.

It is an arithmetic number, because the mean of its divisors is an integer number (327219123).

Almost surely, 2^1121894132 is an apocalyptic number.

It is an amenable number.

1121894132 is a deficient number, since it is larger than the sum of its proper divisors (841420606).

1121894132 is a wasteful number, since it uses less digits than its factorization.

1121894132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280473537 (or 280473535 counting only the distinct ones).

The product of its digits is 3456, while the sum is 32.

The square root of 1121894132 is about 33494.6881161775. The cubic root of 1121894132 is about 1039.0839233469.

The spelling of 1121894132 in words is "one billion, one hundred twenty-one million, eight hundred ninety-four thousand, one hundred thirty-two".