1320537532 has 12 divisors (see below), whose sum is σ = 2326451400. Its totient is φ = 655837136.

The previous prime is 1320537503. The next prime is 1320537583. The reversal of 1320537532 is 2357350231.

It is a junction number, because it is equal to n+sod(n) for n = 1320537494 and 1320537503.

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, 1107238 + ... + 1108429.

It is an arithmetic number, because the mean of its divisors is an integer number (193870950).

Almost surely, 2^1320537532 is an apocalyptic number.

It is an amenable number.

1320537532 is a deficient number, since it is larger than the sum of its proper divisors (1005913868).

1320537532 is a wasteful number, since it uses less digits than its factorization.

1320537532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215820 (or 2215818 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 1320537532 is about 36339.2010368968. The cubic root of 1320537532 is about 1097.1101922506.

Adding to 1320537532 its reverse (2357350231), we get a palindrome (3677887763).

The spelling of 1320537532 in words is "one billion, three hundred twenty million, five hundred thirty-seven thousand, five hundred thirty-two".