1121644532 has 12 divisors (see below), whose sum is σ = 1977862656. Its totient is φ = 556540920.

The previous prime is 1121644523. The next prime is 1121644583. The reversal of 1121644532 is 2354461211.

It is a super-3 number, since 3×1121644532³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121644495 and 1121644504.

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 in 3 ways as a sum of consecutive naturals, for example, 1069748 + ... + 1070795.

It is an arithmetic number, because the mean of its divisors is an integer number (164821888).

Almost surely, 2^1121644532 is an apocalyptic number.

It is an amenable number.

1121644532 is a deficient number, since it is larger than the sum of its proper divisors (856218124).

1121644532 is a wasteful number, since it uses less digits than its factorization.

1121644532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140678 (or 2140676 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 1121644532 is about 33490.9619449785. The cubic root of 1121644532 is about 1039.0068588610.

The spelling of 1121644532 in words is "one billion, one hundred twenty-one million, six hundred forty-four thousand, five hundred thirty-two".