100502513 has 4 divisors (see below), whose sum is σ = 100666020. Its totient is φ = 100339008.

The previous prime is 100502503. The next prime is 100502537. The reversal of 100502513 is 315205001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 315205001 = 109 ⋅2891789.

It can be written as a sum of positive squares in 2 ways, for example, as 13490929 + 87011584 = 3673^2 + 9328^2 .

It is not a de Polignac number, because 100502513 - 2¹⁴ = 100486129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100502491 and 100502500.

It is not an unprimeable number, because it can be changed into a prime (100502503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80828 + ... + 82061.

It is an arithmetic number, because the mean of its divisors is an integer number (25166505).

Almost surely, 2^100502513 is an apocalyptic number.

It is an amenable number.

100502513 is a deficient number, since it is larger than the sum of its proper divisors (163507).

100502513 is an equidigital number, since it uses as much as digits as its factorization.

100502513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163506.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 100502513 is about 10025.0941641463. The cubic root of 100502513 is about 464.9350709049.

Adding to 100502513 its reverse (315205001), we get a palindrome (415707514).

The spelling of 100502513 in words is "one hundred million, five hundred two thousand, five hundred thirteen".