1272571 has 4 divisors (see below), whose sum is σ = 1294200. Its totient is φ = 1250944.

The previous prime is 1272559. The next prime is 1272577. The reversal of 1272571 is 1752721.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1272571 - 2⁵ = 1272539 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1272577) 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, 10726 + ... + 10843.

It is an arithmetic number, because the mean of its divisors is an integer number (323550).

2^1272571 is an apocalyptic number.

1272571 is a deficient number, since it is larger than the sum of its proper divisors (21629).

1272571 is an equidigital number, since it uses as much as digits as its factorization.

1272571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21628.

The product of its digits is 980, while the sum is 25.

The square root of 1272571 is about 1128.0828870256. The cubic root of 1272571 is about 108.3662406277.

The spelling of 1272571 in words is "one million, two hundred seventy-two thousand, five hundred seventy-one".