1272552722 has 32 divisors (see below), whose sum is σ = 2203725312. Its totient is φ = 539852544.

The previous prime is 1272552713. The next prime is 1272552727. The reversal of 1272552722 is 2272552721.

It is not an unprimeable number, because it can be changed into a prime (1272552727) 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, 887318 + ... + 888750.

It is an arithmetic number, because the mean of its divisors is an integer number (68866416).

Almost surely, 2^1272552722 is an apocalyptic number.

1272552722 is a deficient number, since it is larger than the sum of its proper divisors (931172590).

1272552722 is a wasteful number, since it uses less digits than its factorization.

1272552722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042.

The product of its digits is 39200, while the sum is 35.

The square root of 1272552722 is about 35672.8569363319. The cubic root of 1272552722 is about 1083.6572180197.

Subtracting 1272552722 from its reverse (2272552721), we obtain a palindrome (999999999).

The spelling of 1272552722 in words is "one billion, two hundred seventy-two million, five hundred fifty-two thousand, seven hundred twenty-two".