1275142 has 16 divisors (see below), whose sum is σ = 2106000. Its totient is φ = 574240.

The previous prime is 1275133. The next prime is 1275173. The reversal of 1275142 is 2415721.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3084 + ... + 3472.

It is an arithmetic number, because the mean of its divisors is an integer number (131625).

2^1275142 is an apocalyptic number.

1275142 is a deficient number, since it is larger than the sum of its proper divisors (830858).

1275142 is a wasteful number, since it uses less digits than its factorization.

1275142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551.

The product of its digits is 560, while the sum is 22.

The square root of 1275142 is about 1129.2218559699. The cubic root of 1275142 is about 108.4391696792.

The spelling of 1275142 in words is "one million, two hundred seventy-five thousand, one hundred forty-two".