202504013 has 8 divisors (see below), whose sum is σ = 210408600. Its totient is φ = 194660928.

The previous prime is 202504009. The next prime is 202504037. The reversal of 202504013 is 310405202.

It can be written as a sum of positive squares in 4 ways, for example, as 30448324 + 172055689 = 5518^2 + 13117^2 .

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 202504013 - 2² = 202504009 is a prime.

It is a super-2 number, since 2×202504013² = 82015750562208338, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 202503982 and 202504000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202504073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8606 + ... + 21887.

It is an arithmetic number, because the mean of its divisors is an integer number (26301075).

Almost surely, 2^202504013 is an apocalyptic number.

It is an amenable number.

202504013 is a deficient number, since it is larger than the sum of its proper divisors (7904587).

202504013 is a wasteful number, since it uses less digits than its factorization.

202504013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30751.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 202504013 is about 14230.3904725064. The cubic root of 202504013 is about 587.2340252519.

Adding to 202504013 its reverse (310405202), we get a palindrome (512909215).

The spelling of 202504013 in words is "two hundred two million, five hundred four thousand, thirteen".