1601125 has 8 divisors (see below), whose sum is σ = 1998360. Its totient is φ = 1280800.

The previous prime is 1601123. The next prime is 1601137. The reversal of 1601125 is 5211061.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 146689 + 1454436 = 383^2 + 1206^2 .

It is not a de Polignac number, because 1601125 - 2¹ = 1601123 is a prime.

1601125 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1601099 and 1601108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601123) 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 7 ways as a sum of consecutive naturals, for example, 6280 + ... + 6529.

It is an arithmetic number, because the mean of its divisors is an integer number (249795).

2^1601125 is an apocalyptic number.

It is an amenable number.

1601125 is a deficient number, since it is larger than the sum of its proper divisors (397235).

1601125 is an equidigital number, since it uses as much as digits as its factorization.

1601125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12824 (or 12814 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1601125 is about 1265.3556812217. The cubic root of 1601125 is about 116.9881157725.

Adding to 1601125 its reverse (5211061), we get a palindrome (6812186).

The spelling of 1601125 in words is "one million, six hundred one thousand, one hundred twenty-five".