202113530 has 16 divisors (see below), whose sum is σ = 364089600. Its totient is φ = 80782032.

The previous prime is 202113523. The next prime is 202113563. The reversal of 202113530 is 35311202.

It is a junction number, because it is equal to n+sod(n) for n = 202113499 and 202113508.

It is an unprimeable number.

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, 6767 + ... + 21213.

It is an arithmetic number, because the mean of its divisors is an integer number (22755600).

Almost surely, 2^202113530 is an apocalyptic number.

202113530 is a deficient number, since it is larger than the sum of its proper divisors (161976070).

202113530 is a wasteful number, since it uses less digits than its factorization.

202113530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15853.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 202113530 is about 14216.6638139896. The cubic root of 202113530 is about 586.8563332314.

Adding to 202113530 its reverse (35311202), we get a palindrome (237424732).

It can be divided in two parts, 2021 and 13530, that added together give a palindrome (15551).

The spelling of 202113530 in words is "two hundred two million, one hundred thirteen thousand, five hundred thirty".