1122581632 has 16 divisors (see below), whose sum is σ = 2236393350. Its totient is φ = 561290752.

The previous prime is 1122581609. The next prime is 1122581633. The reversal of 1122581632 is 2361852211.

It can be written as a sum of positive squares in only one way, i.e., 1119839296 + 2742336 = 33464^2 + 1656^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 1122581594 and 1122581603.

It is not an unprimeable number, because it can be changed into a prime (1122581633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4384957 + ... + 4385212.

Almost surely, 2^1122581632 is an apocalyptic number.

It is an amenable number.

1122581632 is a deficient number, since it is larger than the sum of its proper divisors (1113811718).

1122581632 is an frugal number, since it uses more digits than its factorization.

1122581632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8770183 (or 8770171 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 1122581632 is about 33504.9493657280. The cubic root of 1122581632 is about 1039.2961312263.

The spelling of 1122581632 in words is "one billion, one hundred twenty-two million, five hundred eighty-one thousand, six hundred thirty-two".