1272131 has 8 divisors (see below), whose sum is σ = 1461504. Its totient is φ = 1084680.

The previous prime is 1272113. The next prime is 1272133. The reversal of 1272131 is 1312721.

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 1272131 - 2⁶ = 1272067 is a prime.

It is a super-2 number, since 2×1272131² = 3236634562322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272133) 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, 1496 + ... + 2186.

It is an arithmetic number, because the mean of its divisors is an integer number (182688).

2^1272131 is an apocalyptic number.

1272131 is a deficient number, since it is larger than the sum of its proper divisors (189373).

1272131 is an equidigital number, since it uses as much as digits as its factorization.

1272131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961.

The product of its digits is 84, while the sum is 17.

The square root of 1272131 is about 1127.8878490346. The cubic root of 1272131 is about 108.3537497353.

Adding to 1272131 its reverse (1312721), we get a palindrome (2584852).

The spelling of 1272131 in words is "one million, two hundred seventy-two thousand, one hundred thirty-one".