201245223 has 4 divisors (see below), whose sum is σ = 268326968. Its totient is φ = 134163480.

The previous prime is 201245189. The next prime is 201245243. The reversal of 201245223 is 322542102.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 201245223 - 2¹² = 201241127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201245223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201245243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33540868 + ... + 33540873.

It is an arithmetic number, because the mean of its divisors is an integer number (67081742).

Almost surely, 2^201245223 is an apocalyptic number.

201245223 is a deficient number, since it is larger than the sum of its proper divisors (67081745).

201245223 is an equidigital number, since it uses as much as digits as its factorization.

201245223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67081744.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 201245223 is about 14186.0925909850. The cubic root of 201245223 is about 586.0147221856.

Adding to 201245223 its reverse (322542102), we get a palindrome (523787325).

It can be divided in two parts, 20124522 and 3, that multiplied together give a triangular number (60373566 = T₁₀₉₈₈).

The spelling of 201245223 in words is "two hundred one million, two hundred forty-five thousand, two hundred twenty-three".