1864125 has 24 divisors (see below), whose sum is σ = 3362424. Its totient is φ = 993600.

The previous prime is 1864117. The next prime is 1864151. The reversal of 1864125 is 5214681.

1864125 is a `hidden beast` number, since 18 + 641 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 168921 + 1695204 = 411^2 + 1302^2 .

It is not a de Polignac number, because 1864125 - 2³ = 1864117 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 297 + ... + 1953.

It is an arithmetic number, because the mean of its divisors is an integer number (140101).

2^1864125 is an apocalyptic number.

1864125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1864125 is a deficient number, since it is larger than the sum of its proper divisors (1498299).

1864125 is a wasteful number, since it uses less digits than its factorization.

1864125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678 (or 1665 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 1864125 is about 1365.3296305288. The cubic root of 1864125 is about 123.0717408175.

The spelling of 1864125 in words is "one million, eight hundred sixty-four thousand, one hundred twenty-five".