1825481 has 8 divisors (see below), whose sum is σ = 2116224. Its totient is φ = 1542240.

The previous prime is 1825459. The next prime is 1825489. The reversal of 1825481 is 1845281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1825481 - 2¹⁴ = 1809097 is a prime.

It is a super-2 number, since 2×1825481² = 6664761762722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1825489) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1340 + ... + 2333.

It is an arithmetic number, because the mean of its divisors is an integer number (264528).

2^1825481 is an apocalyptic number.

It is an amenable number.

1825481 is a deficient number, since it is larger than the sum of its proper divisors (290743).

1825481 is an equidigital number, since it uses as much as digits as its factorization.

1825481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3751.

The product of its digits is 2560, while the sum is 29.

The square root of 1825481 is about 1351.1036229690. The cubic root of 1825481 is about 122.2153546493.

The spelling of 1825481 in words is "one million, eight hundred twenty-five thousand, four hundred eighty-one".