20343125 has 30 divisors (see below), whose sum is σ = 28045710. Its totient is φ = 14740000.

The previous prime is 20343097. The next prime is 20343137. The reversal of 20343125 is 52134302.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 13256881 + 7086244 = 3641^2 + 2662^2 .

It is not a de Polignac number, because 20343125 - 2⁶ = 20343061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20343097 and 20343106.

It is a congruent number.

It is an unprimeable number.

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 29 ways as a sum of consecutive naturals, for example, 75491 + ... + 75759.

It is an arithmetic number, because the mean of its divisors is an integer number (934857).

Almost surely, 2^20343125 is an apocalyptic number.

20343125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20343125 is a deficient number, since it is larger than the sum of its proper divisors (7702585).

20343125 is an equidigital number, since it uses as much as digits as its factorization.

20343125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 20343125 is about 4510.3353533856. The cubic root of 20343125 is about 272.9852756307.

Adding to 20343125 its reverse (52134302), we get a palindrome (72477427).

The spelling of 20343125 in words is "twenty million, three hundred forty-three thousand, one hundred twenty-five".