1641125 has 16 divisors (see below), whose sum is σ = 2159040. Its totient is φ = 1242000.

The previous prime is 1641103. The next prime is 1641131. The reversal of 1641125 is 5211461.

It is not a de Polignac number, because 1641125 - 2⁸ = 1640869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1641097 and 1641106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2030 + ... + 2720.

It is an arithmetic number, because the mean of its divisors is an integer number (134940).

2^1641125 is an apocalyptic number.

It is an amenable number.

1641125 is a deficient number, since it is larger than the sum of its proper divisors (517915).

1641125 is an equidigital number, since it uses as much as digits as its factorization.

1641125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725 (or 715 counting only the distinct ones).

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

The square root of 1641125 is about 1281.0640108909. The cubic root of 1641125 is about 117.9543297360.

Adding to 1641125 its reverse (5211461), we get a palindrome (6852586).

The spelling of 1641125 in words is "one million, six hundred forty-one thousand, one hundred twenty-five".