1272616497 has 12 divisors (see below), whose sum is σ = 1838533060. Its totient is φ = 848268288.

The previous prime is 1272616487. The next prime is 1272616531. The reversal of 1272616497 is 7946162721.

1272616497 is a `hidden beast` number, since 1 + 27 + 2 + 616 + 4 + 9 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 683874801 + 588741696 = 26151^2 + 24264^2 .

It is not a de Polignac number, because 1272616497 - 2¹⁹ = 1272092209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1272616487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99153 + ... + 111249.

Almost surely, 2^1272616497 is an apocalyptic number.

It is an amenable number.

1272616497 is a deficient number, since it is larger than the sum of its proper divisors (565916563).

1272616497 is a wasteful number, since it uses less digits than its factorization.

1272616497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23792 (or 23789 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 1272616497 is about 35673.7508120467. The cubic root of 1272616497 is about 1083.6753205007.

The spelling of 1272616497 in words is "one billion, two hundred seventy-two million, six hundred sixteen thousand, four hundred ninety-seven".