1831925 has 6 divisors (see below), whose sum is σ = 2271618. Its totient is φ = 1465520.

The previous prime is 1831913. The next prime is 1831933. The reversal of 1831925 is 5291381.

It can be written as a sum of positive squares in 3 ways, for example, as 6724 + 1825201 = 82^2 + 1351^2 .

It is not a de Polignac number, because 1831925 - 2⁴ = 1831909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36614 + ... + 36663.

It is an arithmetic number, because the mean of its divisors is an integer number (378603).

2^1831925 is an apocalyptic number.

It is an amenable number.

1831925 is a deficient number, since it is larger than the sum of its proper divisors (439693).

1831925 is an equidigital number, since it uses as much as digits as its factorization.

1831925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73287 (or 73282 counting only the distinct ones).

The product of its digits is 2160, while the sum is 29.

The square root of 1831925 is about 1353.4862393094. The cubic root of 1831925 is about 122.3589936611.

The spelling of 1831925 in words is "one million, eight hundred thirty-one thousand, nine hundred twenty-five".