1872125 has 16 divisors (see below), whose sum is σ = 2476656. Its totient is φ = 1408000.

The previous prime is 1872113. The next prime is 1872137. The reversal of 1872125 is 5212781.

It is an interprime number because it is at equal distance from previous prime (1872113) and next prime (1872137).

It can be written as a sum of positive squares in 8 ways, for example, as 657721 + 1214404 = 811^2 + 1102^2 .

It is not a de Polignac number, because 1872125 - 2⁴ = 1872109 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1872094 and 1872103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1685 + ... + 2565.

It is an arithmetic number, because the mean of its divisors is an integer number (154791).

2^1872125 is an apocalyptic number.

It is an amenable number.

1872125 is a deficient number, since it is larger than the sum of its proper divisors (604531).

1872125 is an equidigital number, since it uses as much as digits as its factorization.

1872125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913 (or 903 counting only the distinct ones).

The product of its digits is 1120, while the sum is 26.

The square root of 1872125 is about 1368.2561894616. The cubic root of 1872125 is about 123.2475460564.

The spelling of 1872125 in words is "one million, eight hundred seventy-two thousand, one hundred twenty-five".