1285537532282 has 4 divisors (see below), whose sum is σ = 1928306298426. Its totient is φ = 642768766140.

The previous prime is 1285537532239. The next prime is 1285537532333. The reversal of 1285537532282 is 2822357355821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1263692987881 + 21844544401 = 1124141^2 + 147799^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 321384383069 + ... + 321384383072.

Almost surely, 2^{1285537532282} is an apocalyptic number.

1285537532282 is a deficient number, since it is larger than the sum of its proper divisors (642768766144).

1285537532282 is an equidigital number, since it uses as much as digits as its factorization.

1285537532282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642768766143.

The product of its digits is 8064000, while the sum is 53.

The spelling of 1285537532282 in words is "one trillion, two hundred eighty-five billion, five hundred thirty-seven million, five hundred thirty-two thousand, two hundred eighty-two".