10010509 has 4 divisors (see below), whose sum is σ = 10017216. Its totient is φ = 10003804.

The previous prime is 10010491. The next prime is 10010513. The reversal of 10010509 is 90501001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 90501001 = 37 ⋅2445973.

It is a cyclic number.

It is not a de Polignac number, because 10010509 - 2¹⁵ = 9977741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10010492 and 10010501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10010579) 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, 12 + ... + 4474.

It is an arithmetic number, because the mean of its divisors is an integer number (2504304).

Almost surely, 2^10010509 is an apocalyptic number.

It is an amenable number.

10010509 is a deficient number, since it is larger than the sum of its proper divisors (6707).

10010509 is an equidigital number, since it uses as much as digits as its factorization.

10010509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6706.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 10010509 is about 3163.9388426454. The cubic root of 10010509 is about 215.5189124287.

It can be divided in two parts, 100 and 10509, that added together give a square (10609 = 103²).

The spelling of 10010509 in words is "ten million, ten thousand, five hundred nine".