1873138 has 8 divisors (see below), whose sum is σ = 2869632. Its totient is φ = 916596.

The previous prime is 1873133. The next prime is 1873141. The reversal of 1873138 is 8313781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1873133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9870 + ... + 10057.

It is an arithmetic number, because the mean of its divisors is an integer number (358704).

2^1873138 is an apocalyptic number.

1873138 is a deficient number, since it is larger than the sum of its proper divisors (996494).

1873138 is a wasteful number, since it uses less digits than its factorization.

1873138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19976.

The product of its digits is 4032, while the sum is 31.

The square root of 1873138 is about 1368.6263186129. The cubic root of 1873138 is about 123.2697716472.

It can be divided in two parts, 18731 and 38, that added together give a square (18769 = 137²).

The spelling of 1873138 in words is "one million, eight hundred seventy-three thousand, one hundred thirty-eight".