1825130 has 16 divisors (see below), whose sum is σ = 3303720. Its totient is φ = 725952.

The previous prime is 1825129. The next prime is 1825139. The reversal of 1825130 is 315281.

It can be written as a sum of positive squares in 4 ways, for example, as 1745041 + 80089 = 1321^2 + 283^2 .

It is not an unprimeable number, because it can be changed into a prime (1825139) 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, 1892 + ... + 2688.

2^1825130 is an apocalyptic number.

1825130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1825130 is a deficient number, since it is larger than the sum of its proper divisors (1478590).

1825130 is a wasteful number, since it uses less digits than its factorization.

1825130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1825130 is about 1350.9737229125. The cubic root of 1825130 is about 122.2075210356.

It can be divided in two parts, 18251 and 30, that added together give a palindrome (18281).

The spelling of 1825130 in words is "one million, eight hundred twenty-five thousand, one hundred thirty".