1272848313 has 64 divisors (see below), whose sum is σ = 2038431744. Its totient is φ = 698280000.

The previous prime is 1272848287. The next prime is 1272848341. The reversal of 1272848313 is 3138482721.

It is not a de Polignac number, because 1272848313 - 2⁵ = 1272848281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1272848393) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1105288 + ... + 1106438.

It is an arithmetic number, because the mean of its divisors is an integer number (31850496).

Almost surely, 2^1272848313 is an apocalyptic number.

It is an amenable number.

1272848313 is a deficient number, since it is larger than the sum of its proper divisors (765583431).

1272848313 is a wasteful number, since it uses less digits than its factorization.

1272848313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266.

The product of its digits is 64512, while the sum is 39.

The square root of 1272848313 is about 35676.9997757659. Note that the first 3 decimals coincide. The cubic root of 1272848313 is about 1083.7411161867.

The spelling of 1272848313 in words is "one billion, two hundred seventy-two million, eight hundred forty-eight thousand, three hundred thirteen".