12313405 has 8 divisors (see below), whose sum is σ = 15912792. Its totient is φ = 9092928.

The previous prime is 12313393. The next prime is 12313409. The reversal of 12313405 is 50431321.

It can be written as a sum of positive squares in 4 ways, for example, as 324 + 12313081 = 18^2 + 3509^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12313405 - 2¹³ = 12305213 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 (12313409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94654 + ... + 94783.

It is an arithmetic number, because the mean of its divisors is an integer number (1989099).

Almost surely, 2^12313405 is an apocalyptic number.

It is an amenable number.

12313405 is a deficient number, since it is larger than the sum of its proper divisors (3599387).

12313405 is a wasteful number, since it uses less digits than its factorization.

12313405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189455.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 12313405 is about 3509.0461666954. The cubic root of 12313405 is about 230.9188510774.

Adding to 12313405 its reverse (50431321), we get a palindrome (62744726).

The spelling of 12313405 in words is "twelve million, three hundred thirteen thousand, four hundred five".