1641325 has 24 divisors (see below), whose sum is σ = 2374848. Its totient is φ = 1102080.

The previous prime is 1641323. The next prime is 1641329. The reversal of 1641325 is 5231461.

It is not a de Polignac number, because 1641325 - 2¹ = 1641323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1641296 and 1641305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14469 + ... + 14581.

It is an arithmetic number, because the mean of its divisors is an integer number (98952).

2^1641325 is an apocalyptic number.

It is an amenable number.

1641325 is a deficient number, since it is larger than the sum of its proper divisors (733523).

1641325 is a wasteful number, since it uses less digits than its factorization.

1641325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 208 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 1641325 is about 1281.1420686247. The cubic root of 1641325 is about 117.9591211459.

Adding to 1641325 its reverse (5231461), we get a palindrome (6872786).

The spelling of 1641325 in words is "one million, six hundred forty-one thousand, three hundred twenty-five".