1273273641 has 16 divisors (see below), whose sum is σ = 1896760320. Its totient is φ = 844156080.

The previous prime is 1273273627. The next prime is 1273273649. The reversal of 1273273641 is 1463723721.

1273273641 is a `hidden beast` number, since 1 + 2 + 7 + 3 + 2 + 7 + 3 + 641 = 666.

It is not a de Polignac number, because 1273273641 - 2⁵ = 1273273609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1273273596 and 1273273605.

It is not an unprimeable number, because it can be changed into a prime (1273273649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125385 + ... + 135158.

It is an arithmetic number, because the mean of its divisors is an integer number (118547520).

Almost surely, 2^1273273641 is an apocalyptic number.

It is an amenable number.

1273273641 is a deficient number, since it is larger than the sum of its proper divisors (623486679).

1273273641 is a wasteful number, since it uses less digits than its factorization.

1273273641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260733 (or 260727 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 1273273641 is about 35682.9600930192. The cubic root of 1273273641 is about 1083.8618150697.

The spelling of 1273273641 in words is "one billion, two hundred seventy-three million, two hundred seventy-three thousand, six hundred forty-one".