201443125 has 20 divisors (see below), whose sum is σ = 271097596. Its totient is φ = 148752000.

The previous prime is 201443113. The next prime is 201443173. The reversal of 201443125 is 521344102.

It can be written as a sum of positive squares in 10 ways, for example, as 132917841 + 68525284 = 11529^2 + 8278^2 .

It is not a de Polignac number, because 201443125 - 2⁵ = 201443093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201443096 and 201443105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4272 + ... + 20521.

Almost surely, 2^201443125 is an apocalyptic number.

201443125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201443125 is a deficient number, since it is larger than the sum of its proper divisors (69654471).

201443125 is an equidigital number, since it uses as much as digits as its factorization.

201443125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24826 (or 24811 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 201443125 is about 14193.0660887632. The cubic root of 201443125 is about 586.2067524012.

Adding to 201443125 its reverse (521344102), we get a palindrome (722787227).

The spelling of 201443125 in words is "two hundred one million, four hundred forty-three thousand, one hundred twenty-five".