1172521432 has 32 divisors (see below), whose sum is σ = 2271559680. Its totient is φ = 566808480.

The previous prime is 1172521391. The next prime is 1172521457. The reversal of 1172521432 is 2341252711.

It is a self number, because there is not a number n which added to its sum of digits gives 1172521432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411003 + ... + 413845.

It is an arithmetic number, because the mean of its divisors is an integer number (70986240).

Almost surely, 2^1172521432 is an apocalyptic number.

It is an amenable number.

1172521432 is a deficient number, since it is larger than the sum of its proper divisors (1099038248).

1172521432 is a wasteful number, since it uses less digits than its factorization.

1172521432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4543 (or 4539 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 1172521432 is about 34242.1002860514. The cubic root of 1172521432 is about 1054.4846526559.

The spelling of 1172521432 in words is "one billion, one hundred seventy-two million, five hundred twenty-one thousand, four hundred thirty-two".