13650015 has 16 divisors (see below), whose sum is σ = 22118400. Its totient is φ = 7187232.

The previous prime is 13650011. The next prime is 13650029. The reversal of 13650015 is 51005631.

It is a happy number.

13650015 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13650015 - 2² = 13650011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13649973 and 13650000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13650011) 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 15 ways as a sum of consecutive naturals, for example, 4575 + ... + 6944.

It is an arithmetic number, because the mean of its divisors is an integer number (1382400).

Almost surely, 2^13650015 is an apocalyptic number.

13650015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13650015 is a deficient number, since it is larger than the sum of its proper divisors (8468385).

13650015 is a wasteful number, since it uses less digits than its factorization.

13650015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11606.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 13650015 is about 3694.5926703765. The cubic root of 13650015 is about 238.9888885668.

Adding to 13650015 its reverse (51005631), we get a palindrome (64655646).

The spelling of 13650015 in words is "thirteen million, six hundred fifty thousand, fifteen".