1825231 has 4 divisors (see below), whose sum is σ = 1888200. Its totient is φ = 1762264.

The previous prime is 1825217. The next prime is 1825261. The reversal of 1825231 is 1325281.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1325281 = 31 ⋅42751.

It is a cyclic number.

It is not a de Polignac number, because 1825231 - 2¹⁷ = 1694159 is a prime.

It is a super-2 number, since 2×1825231² = 6662936406722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1825261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31441 + ... + 31498.

It is an arithmetic number, because the mean of its divisors is an integer number (472050).

2^1825231 is an apocalyptic number.

1825231 is a deficient number, since it is larger than the sum of its proper divisors (62969).

1825231 is an equidigital number, since it uses as much as digits as its factorization.

1825231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62968.

The product of its digits is 480, while the sum is 22.

The square root of 1825231 is about 1351.0111028411. The cubic root of 1825231 is about 122.2097752553.

The spelling of 1825231 in words is "one million, eight hundred twenty-five thousand, two hundred thirty-one".