1272227351 has 8 divisors (see below), whose sum is σ = 1383472080. Its totient is φ = 1165027968.

The previous prime is 1272227339. The next prime is 1272227377. The reversal of 1272227351 is 1537222721.

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 1272227351 - 2⁶ = 1272227287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272227381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010681 + ... + 1011938.

It is an arithmetic number, because the mean of its divisors is an integer number (172934010).

Almost surely, 2^1272227351 is an apocalyptic number.

1272227351 is a deficient number, since it is larger than the sum of its proper divisors (111244729).

1272227351 is a wasteful number, since it uses less digits than its factorization.

1272227351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022673.

The product of its digits is 11760, while the sum is 32.

The square root of 1272227351 is about 35668.2961605962. The cubic root of 1272227351 is about 1083.5648523148.

The spelling of 1272227351 in words is "one billion, two hundred seventy-two million, two hundred twenty-seven thousand, three hundred fifty-one".