202520113 has 8 divisors (see below), whose sum is σ = 204355368. Its totient is φ = 200690304.

The previous prime is 202520089. The next prime is 202520119. The reversal of 202520113 is 311025202.

It can be written as a sum of positive squares in 4 ways, for example, as 3794704 + 198725409 = 1948^2 + 14097^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 202520113 - 2¹⁷ = 202389041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202520119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115995 + ... + 117727.

It is an arithmetic number, because the mean of its divisors is an integer number (25544421).

Almost surely, 2^202520113 is an apocalyptic number.

It is an amenable number.

202520113 is a deficient number, since it is larger than the sum of its proper divisors (1835255).

202520113 is a wasteful number, since it uses less digits than its factorization.

202520113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 202520113 is about 14230.9561519948. The cubic root of 202520113 is about 587.2495874410.

Adding to 202520113 its reverse (311025202), we get a palindrome (513545315).

The spelling of 202520113 in words is "two hundred two million, five hundred twenty thousand, one hundred thirteen".