1272096489 has 16 divisors (see below), whose sum is σ = 1770717312. Its totient is φ = 810805248.

The previous prime is 1272096461. The next prime is 1272096503. The reversal of 1272096489 is 9846902721.

It is not a de Polignac number, because 1272096489 - 2⁵ = 1272096457 is a prime.

It is a super-2 number, since 2×1272096489² = 3236458954652254242, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1272096409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235867 + ... + 241199.

It is an arithmetic number, because the mean of its divisors is an integer number (110669832).

Almost surely, 2^1272096489 is an apocalyptic number.

It is an amenable number.

1272096489 is a deficient number, since it is larger than the sum of its proper divisors (498620823).

1272096489 is a wasteful number, since it uses less digits than its factorization.

1272096489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8816.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 1272096489 is about 35666.4616832116. The cubic root of 1272096489 is about 1083.5276990168.

The spelling of 1272096489 in words is "one billion, two hundred seventy-two million, ninety-six thousand, four hundred eighty-nine".