1872142 has 24 divisors (see below), whose sum is σ = 3094560. Its totient is φ = 848640.

The previous prime is 1872137. The next prime is 1872149. The reversal of 1872142 is 2412781.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1872149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23659 + ... + 23737.

It is an arithmetic number, because the mean of its divisors is an integer number (128940).

2^1872142 is an apocalyptic number.

1872142 is a deficient number, since it is larger than the sum of its proper divisors (1222418).

1872142 is a wasteful number, since it uses less digits than its factorization.

1872142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 139 counting only the distinct ones).

The product of its digits is 896, while the sum is 25.

The square root of 1872142 is about 1368.2624017344. The cubic root of 1872142 is about 123.2479191087.

The spelling of 1872142 in words is "one million, eight hundred seventy-two thousand, one hundred forty-two".