1276131 has 4 divisors (see below), whose sum is σ = 1701512. Its totient is φ = 850752.

The previous prime is 1276129. The next prime is 1276133. The reversal of 1276131 is 1316721.

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

It is an interprime number because it is at equal distance from previous prime (1276129) and next prime (1276133).

It is not a de Polignac number, because 1276131 - 2¹ = 1276129 is a prime.

It is a super-2 number, since 2×1276131² = 3257020658322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1276098 and 1276107.

It is not an unprimeable number, because it can be changed into a prime (1276133) 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, 212686 + ... + 212691.

It is an arithmetic number, because the mean of its divisors is an integer number (425378).

2^1276131 is an apocalyptic number.

1276131 is a deficient number, since it is larger than the sum of its proper divisors (425381).

1276131 is an equidigital number, since it uses as much as digits as its factorization.

1276131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425380.

The product of its digits is 252, while the sum is 21.

The square root of 1276131 is about 1129.6596832675. The cubic root of 1276131 is about 108.4671975705.

The spelling of 1276131 in words is "one million, two hundred seventy-six thousand, one hundred thirty-one".