1271224273 has 8 divisors (see below), whose sum is σ = 1387301760. Its totient is φ = 1155232080.

The previous prime is 1271224267. The next prime is 1271224301. The reversal of 1271224273 is 3724221721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1271224273 - 2⁹ = 1271223761 is a prime.

It is a super-2 number, since 2×1271224273² = 3232022304528757058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1271224373) 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 7 ways as a sum of consecutive naturals, for example, 12136 + ... + 51862.

It is an arithmetic number, because the mean of its divisors is an integer number (173412720).

Almost surely, 2^1271224273 is an apocalyptic number.

It is an amenable number.

1271224273 is a deficient number, since it is larger than the sum of its proper divisors (116077487).

1271224273 is a wasteful number, since it uses less digits than its factorization.

1271224273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42647.

The product of its digits is 9408, while the sum is 31.

The square root of 1271224273 is about 35654.2321891806. The cubic root of 1271224273 is about 1083.2800012772.

Adding to 1271224273 its reverse (3724221721), we get a palindrome (4995445994).

The spelling of 1271224273 in words is "one billion, two hundred seventy-one million, two hundred twenty-four thousand, two hundred seventy-three".