202290354289 has 3 divisors (see below), whose sum is σ = 202290804057. Its totient is φ = 202289904522.

The previous prime is 202290354283. The next prime is 202290354347. The reversal of 202290354289 is 982453092202.

The square root of 202290354289 is 449767.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 202290354289 - 2⁹ = 202290353777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202290354283) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 224884 + ... + 674650.

It is an arithmetic number, because the mean of its divisors is an integer number (67430268019).

Almost surely, 2^202290354289 is an apocalyptic number.

202290354289 is the 449767-th square number.

202290354289 is the 224884-th centered octagonal number.

It is an amenable number.

202290354289 is a deficient number, since it is larger than the sum of its proper divisors (449768).

202290354289 is an frugal number, since it uses more digits than its factorization.

202290354289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899534 (or 449767 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 202290354289 in words is "two hundred two billion, two hundred ninety million, three hundred fifty-four thousand, two hundred eighty-nine".