1252271 has 8 divisors (see below), whose sum is σ = 1396080. Its totient is φ = 1116288.

The previous prime is 1252267. The next prime is 1252283. The reversal of 1252271 is 1722521.

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

It is not a de Polignac number, because 1252271 - 2² = 1252267 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 (1252201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1616 + ... + 2261.

It is an arithmetic number, because the mean of its divisors is an integer number (174510).

2^1252271 is an apocalyptic number.

1252271 is a deficient number, since it is larger than the sum of its proper divisors (143809).

1252271 is a wasteful number, since it uses less digits than its factorization.

1252271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3913.

The product of its digits is 280, while the sum is 20.

The square root of 1252271 is about 1119.0491499483. The cubic root of 1252271 is about 107.7869313167.

Adding to 1252271 its reverse (1722521), we get a palindrome (2974792).

The spelling of 1252271 in words is "one million, two hundred fifty-two thousand, two hundred seventy-one".