1272253982 has 4 divisors (see below), whose sum is σ = 1908380976. Its totient is φ = 636126990.

The previous prime is 1272253979. The next prime is 1272254017. The reversal of 1272253982 is 2893522721.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318063494 + ... + 318063497.

It is an arithmetic number, because the mean of its divisors is an integer number (477095244).

Almost surely, 2^1272253982 is an apocalyptic number.

1272253982 is a deficient number, since it is larger than the sum of its proper divisors (636126994).

1272253982 is an equidigital number, since it uses as much as digits as its factorization.

1272253982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636126993.

The product of its digits is 120960, while the sum is 41.

The square root of 1272253982 is about 35668.6694733628. The cubic root of 1272253982 is about 1083.5724128645.

The spelling of 1272253982 in words is "one billion, two hundred seventy-two million, two hundred fifty-three thousand, nine hundred eighty-two".