1872123 has 8 divisors (see below), whose sum is σ = 2723136. Its totient is φ = 1134600.

The previous prime is 1872113. The next prime is 1872137. The reversal of 1872123 is 3212781.

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

It is not a de Polignac number, because 1872123 - 2¹⁰ = 1871099 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1872093 and 1872102.

It is not an unprimeable number, because it can be changed into a prime (1872113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28333 + ... + 28398.

It is an arithmetic number, because the mean of its divisors is an integer number (340392).

2^1872123 is an apocalyptic number.

1872123 is a deficient number, since it is larger than the sum of its proper divisors (851013).

1872123 is a wasteful number, since it uses less digits than its factorization.

1872123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56745.

The product of its digits is 672, while the sum is 24.

The square root of 1872123 is about 1368.2554586041. The cubic root of 1872123 is about 123.2475021677.

The spelling of 1872123 in words is "one million, eight hundred seventy-two thousand, one hundred twenty-three".