20142513 has 12 divisors (see below), whose sum is σ = 30172688. Its totient is φ = 13428180.

The previous prime is 20142511. The next prime is 20142517. The reversal of 20142513 is 31524102.

It is not a de Polignac number, because 20142513 - 2¹ = 20142511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20142511) 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 11 ways as a sum of consecutive naturals, for example, 41203 + ... + 41688.

Almost surely, 2^20142513 is an apocalyptic number.

It is an amenable number.

20142513 is a deficient number, since it is larger than the sum of its proper divisors (10030175).

20142513 is an frugal number, since it uses more digits than its factorization.

20142513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82906 (or 82894 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 20142513 is about 4488.0411094374. The cubic root of 20142513 is about 272.0849693089.

Adding to 20142513 its reverse (31524102), we get a palindrome (51666615).

The spelling of 20142513 in words is "twenty million, one hundred forty-two thousand, five hundred thirteen".