1272083449 has 12 divisors (see below), whose sum is σ = 1574245056. Its totient is φ = 1006482672.

The previous prime is 1272083431. The next prime is 1272083489. The reversal of 1272083449 is 9443802721.

It is not a de Polignac number, because 1272083449 - 2²⁹ = 735212537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1272083489) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 536469 + ... + 538834.

It is an arithmetic number, because the mean of its divisors is an integer number (131187088).

Almost surely, 2^1272083449 is an apocalyptic number.

It is an amenable number.

1272083449 is a deficient number, since it is larger than the sum of its proper divisors (302161607).

1272083449 is a wasteful number, since it uses less digits than its factorization.

1272083449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075336 (or 1075323 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 1272083449 is about 35666.2788779542. The cubic root of 1272083449 is about 1083.5239966641.

It can be divided in two parts, 12720 and 83449, that added together give a palindrome (96169).

The spelling of 1272083449 in words is "one billion, two hundred seventy-two million, eighty-three thousand, four hundred forty-nine".