203234164225 has 9 divisors (see below), whose sum is σ = 252013158723. Its totient is φ = 162585528120.

The previous prime is 203234164109. The next prime is 203234164247. The reversal of 203234164225 is 522461432302.

The square root of 203234164225 is 450815.

It is a perfect power (a square), and thus also a powerful number.

203234164225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 73164299121 + 130069865104 = 270489^2 + 360652^2 .

It is not a de Polignac number, because 203234164225 - 2¹³ = 203234156033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2208994 + ... + 2299156.

Almost surely, 2^203234164225 is an apocalyptic number.

203234164225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

203234164225 is the 450815-th square number.

203234164225 is the 225408-th centered octagonal number.

It is an amenable number.

203234164225 is a deficient number, since it is larger than the sum of its proper divisors (48778994498).

203234164225 is an frugal number, since it uses more digits than its factorization.

203234164225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180336 (or 90168 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 203234164225 its reverse (522461432302), we get a palindrome (725695596527).

The spelling of 203234164225 in words is "two hundred three billion, two hundred thirty-four million, one hundred sixty-four thousand, two hundred twenty-five".