1272084001 has 4 divisors (see below), whose sum is σ = 1275035904. Its totient is φ = 1269132100.

The previous prime is 1272083983. The next prime is 1272084059. The reversal of 1272084001 is 1004802721.

It is a happy number.

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 1272084001 - 2⁷ = 1272083873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1272084061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1475305 + ... + 1476166.

It is an arithmetic number, because the mean of its divisors is an integer number (318758976).

Almost surely, 2^1272084001 is an apocalyptic number.

It is an amenable number.

1272084001 is a deficient number, since it is larger than the sum of its proper divisors (2951903).

1272084001 is an equidigital number, since it uses as much as digits as its factorization.

1272084001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951902.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 1272084001 is about 35666.2866163552. The cubic root of 1272084001 is about 1083.5241533900.

Adding to 1272084001 its reverse (1004802721), we get a palindrome (2276886722).

It can be divided in two parts, 12720 and 84001, that added together give a square (96721 = 311²).

The spelling of 1272084001 in words is "one billion, two hundred seventy-two million, eighty-four thousand, one".