1825229 has 4 divisors (see below), whose sum is σ = 2085984. Its totient is φ = 1564476.

The previous prime is 1825217. The next prime is 1825261. The reversal of 1825229 is 9225281.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1825229 - 2⁸ = 1824973 is a prime.

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 (1825129) 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, 130367 + ... + 130380.

It is an arithmetic number, because the mean of its divisors is an integer number (521496).

2^1825229 is an apocalyptic number.

It is an amenable number.

1825229 is a deficient number, since it is larger than the sum of its proper divisors (260755).

1825229 is an equidigital number, since it uses as much as digits as its factorization.

1825229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260754.

The product of its digits is 2880, while the sum is 29.

The square root of 1825229 is about 1351.0103626546. The cubic root of 1825229 is about 122.2097306181.

It can be divided in two parts, 18252 and 29, that added together give a palindrome (18281).

The spelling of 1825229 in words is "one million, eight hundred twenty-five thousand, two hundred twenty-nine".