202019013 has 36 divisors (see below), whose sum is σ = 347757228. Its totient is φ = 112613760.

The previous prime is 202019011. The next prime is 202019021. The reversal of 202019013 is 310910202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44315649 + 157703364 = 6657^2 + 12558^2 .

It is not a de Polignac number, because 202019013 - 2¹ = 202019011 is a prime.

It is a super-2 number, since 2×202019013² = 81623363226988338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202019011) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12495 + ... + 23667.

It is an arithmetic number, because the mean of its divisors is an integer number (9659923).

Almost surely, 2^202019013 is an apocalyptic number.

It is an amenable number.

202019013 is a deficient number, since it is larger than the sum of its proper divisors (145738215).

202019013 is a wasteful number, since it uses less digits than its factorization.

202019013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11234 (or 11224 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 202019013 is about 14213.3392628193. The cubic root of 202019013 is about 586.7648391939.

Adding to 202019013 its reverse (310910202), we get a palindrome (512929215).

The spelling of 202019013 in words is "two hundred two million, nineteen thousand, thirteen".