201105425 has 6 divisors (see below), whose sum is σ = 249370758. Its totient is φ = 160884320.

The previous prime is 201105413. The next prime is 201105469. The reversal of 201105425 is 524501102.

It can be written as a sum of positive squares in 3 ways, for example, as 6558721 + 194546704 = 2561^2 + 13948^2 .

It is not a de Polignac number, because 201105425 - 2⁴ = 201105409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201105397 and 201105406.

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 5 ways as a sum of consecutive naturals, for example, 4022084 + ... + 4022133.

It is an arithmetic number, because the mean of its divisors is an integer number (41561793).

Almost surely, 2^201105425 is an apocalyptic number.

201105425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201105425 is a deficient number, since it is larger than the sum of its proper divisors (48265333).

201105425 is an equidigital number, since it uses as much as digits as its factorization.

201105425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8044227 (or 8044222 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 201105425 is about 14181.1644444312. The cubic root of 201105425 is about 585.8789961262.

Adding to 201105425 its reverse (524501102), we get a palindrome (725606527).

The spelling of 201105425 in words is "two hundred one million, one hundred five thousand, four hundred twenty-five".