1279131 has 16 divisors (see below), whose sum is σ = 2064384. Its totient is φ = 687744.

The previous prime is 1279123. The next prime is 1279133. The reversal of 1279131 is 1319721.

It is not a de Polignac number, because 1279131 - 2³ = 1279123 is a prime.

It is a super-2 number, since 2×1279131² = 3272352230322, which contains 22 as substring.

1279131 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1279133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1435 + ... + 2148.

It is an arithmetic number, because the mean of its divisors is an integer number (129024).

2^1279131 is an apocalyptic number.

1279131 is a deficient number, since it is larger than the sum of its proper divisors (785253).

1279131 is a wasteful number, since it uses less digits than its factorization.

1279131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3610.

The product of its digits is 378, while the sum is 24.

The square root of 1279131 is about 1130.9867373228. The cubic root of 1279131 is about 108.5521279667.

The spelling of 1279131 in words is "one million, two hundred seventy-nine thousand, one hundred thirty-one".