1272931201 has 4 divisors (see below), whose sum is σ = 1339927600. Its totient is φ = 1205934804.

The previous prime is 1272931183. The next prime is 1272931211. The reversal of 1272931201 is 1021392721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1272931201 - 2¹⁵ = 1272898433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1272931201.

It is not an unprimeable number, because it can be changed into a prime (1272931211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33498171 + ... + 33498208.

It is an arithmetic number, because the mean of its divisors is an integer number (334981900).

Almost surely, 2^1272931201 is an apocalyptic number.

It is an amenable number.

1272931201 is a deficient number, since it is larger than the sum of its proper divisors (66996399).

1272931201 is an equidigital number, since it uses as much as digits as its factorization.

1272931201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66996398.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1272931201 is about 35678.1614016193. The cubic root of 1272931201 is about 1083.7646401167.

The spelling of 1272931201 in words is "one billion, two hundred seventy-two million, nine hundred thirty-one thousand, two hundred one".