1810725 has 24 divisors (see below), whose sum is σ = 3422400. Its totient is φ = 827520.

The previous prime is 1810723. The next prime is 1810733. The reversal of 1810725 is 5270181.

It is not a de Polignac number, because 1810725 - 2¹ = 1810723 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 = 1810695 and 1810704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1810723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1200 + ... + 2249.

It is an arithmetic number, because the mean of its divisors is an integer number (142600).

2^1810725 is an apocalyptic number.

1810725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1810725 is a deficient number, since it is larger than the sum of its proper divisors (1611675).

1810725 is a wasteful number, since it uses less digits than its factorization.

1810725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3469 (or 3464 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 1810725 is about 1345.6318218592. The cubic root of 1810725 is about 121.8851602312.

The spelling of 1810725 in words is "one million, eight hundred ten thousand, seven hundred twenty-five".