13140015 has 32 divisors (see below), whose sum is σ = 25076736. Its totient is φ = 5744640.

The previous prime is 13140013. The next prime is 13140047. The reversal of 13140015 is 51004131.

It is not a de Polignac number, because 13140015 - 2¹ = 13140013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 13139976 and 13140003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13140011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 306 + ... + 5135.

It is an arithmetic number, because the mean of its divisors is an integer number (783648).

Almost surely, 2^13140015 is an apocalyptic number.

13140015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13140015 is a deficient number, since it is larger than the sum of its proper divisors (11936721).

13140015 is a wasteful number, since it uses less digits than its factorization.

13140015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5479.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 13140015 is about 3624.9158610925. The cubic root of 13140015 is about 235.9746154350.

Adding to 13140015 its reverse (51004131), we get a palindrome (64144146).

The spelling of 13140015 in words is "thirteen million, one hundred forty thousand, fifteen".