13140345 has 8 divisors (see below), whose sum is σ = 21024576. Its totient is φ = 7008176.

The previous prime is 13140341. The next prime is 13140353. The reversal of 13140345 is 54304131.

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

It is a cyclic number.

It is not a de Polignac number, because 13140345 - 2² = 13140341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13140341) 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, 437997 + ... + 438026.

It is an arithmetic number, because the mean of its divisors is an integer number (2628072).

Almost surely, 2^13140345 is an apocalyptic number.

13140345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13140345 is a deficient number, since it is larger than the sum of its proper divisors (7884231).

13140345 is an equidigital number, since it uses as much as digits as its factorization.

13140345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876031.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 13140345 is about 3624.9613791046. The cubic root of 13140345 is about 235.9765908506.

Adding to 13140345 its reverse (54304131), we get a palindrome (67444476).

The spelling of 13140345 in words is "thirteen million, one hundred forty thousand, three hundred forty-five".