202100245 has 8 divisors (see below), whose sum is σ = 255284640. Its totient is φ = 153170640.

The previous prime is 202100243. The next prime is 202100251. The reversal of 202100245 is 542001202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 202100245 - 2¹ = 202100243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202100243) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1063591 + ... + 1063780.

It is an arithmetic number, because the mean of its divisors is an integer number (31910580).

Almost surely, 2^202100245 is an apocalyptic number.

It is an amenable number.

202100245 is a deficient number, since it is larger than the sum of its proper divisors (53184395).

202100245 is a wasteful number, since it uses less digits than its factorization.

202100245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127395.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 202100245 is about 14216.1965729234. The cubic root of 202100245 is about 586.8434748523.

Adding to 202100245 its reverse (542001202), we get a palindrome (744101447).

The spelling of 202100245 in words is "two hundred two million, one hundred thousand, two hundred forty-five".