10018523 has 4 divisors (see below), whose sum is σ = 10071168. Its totient is φ = 9965880.

The previous prime is 10018513. The next prime is 10018553. The reversal of 10018523 is 32581001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10018523 - 2¹² = 10014427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10018495 and 10018504.

It is not an unprimeable number, because it can be changed into a prime (10018513) 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, 26036 + ... + 26417.

It is an arithmetic number, because the mean of its divisors is an integer number (2517792).

Almost surely, 2^10018523 is an apocalyptic number.

10018523 is a deficient number, since it is larger than the sum of its proper divisors (52645).

10018523 is an equidigital number, since it uses as much as digits as its factorization.

10018523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52644.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 10018523 is about 3165.2050486501. The cubic root of 10018523 is about 215.5764089346.

Adding to 10018523 its reverse (32581001), we get a palindrome (42599524).

The spelling of 10018523 in words is "ten million, eighteen thousand, five hundred twenty-three".