12303493 has 4 divisors (see below), whose sum is σ = 12472108. Its totient is φ = 12134880.

The previous prime is 12303479. The next prime is 12303503. The reversal of 12303493 is 39430321.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10349089 + 1954404 = 3217^2 + 1398^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12303493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303293) 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, 84198 + ... + 84343.

It is an arithmetic number, because the mean of its divisors is an integer number (3118027).

Almost surely, 2^12303493 is an apocalyptic number.

It is an amenable number.

12303493 is a deficient number, since it is larger than the sum of its proper divisors (168615).

12303493 is an equidigital number, since it uses as much as digits as its factorization.

12303493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168614.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 12303493 is about 3507.6335327397. The cubic root of 12303493 is about 230.8568730384.

The spelling of 12303493 in words is "twelve million, three hundred three thousand, four hundred ninety-three".