12339401 has 4 divisors (see below), whose sum is σ = 12640404. Its totient is φ = 12038400.

The previous prime is 12339377. The next prime is 12339403. The reversal of 12339401 is 10493321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10493321 = 109 ⋅96269.

It can be written as a sum of positive squares in 2 ways, for example, as 1123600 + 11215801 = 1060^2 + 3349^2 .

It is a cyclic number.

It is not a de Polignac number, because 12339401 - 2¹⁸ = 12077257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12339403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150440 + ... + 150521.

It is an arithmetic number, because the mean of its divisors is an integer number (3160101).

Almost surely, 2^12339401 is an apocalyptic number.

It is an amenable number.

12339401 is a deficient number, since it is larger than the sum of its proper divisors (301003).

12339401 is an equidigital number, since it uses as much as digits as its factorization.

12339401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301002.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 12339401 is about 3512.7483542093. The cubic root of 12339401 is about 231.0812417653.

The spelling of 12339401 in words is "twelve million, three hundred thirty-nine thousand, four hundred one".