1442187 has 6 divisors (see below), whose sum is σ = 2083172. Its totient is φ = 961452.

The previous prime is 1442173. The next prime is 1442191. The reversal of 1442187 is 7812441.

It is not a de Polignac number, because 1442187 - 2⁸ = 1441931 is a prime.

It is a Duffinian number.

1442187 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1442187.

It is not an unprimeable number, because it can be changed into a prime (1442087) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80113 + ... + 80130.

2^1442187 is an apocalyptic number.

1442187 is a deficient number, since it is larger than the sum of its proper divisors (640985).

1442187 is a wasteful number, since it uses less digits than its factorization.

1442187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160249 (or 160246 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 1442187 is about 1200.9109042723. The cubic root of 1442187 is about 112.9814624876.

The spelling of 1442187 in words is "one million, four hundred forty-two thousand, one hundred eighty-seven".