13125215 has 8 divisors (see below), whose sum is σ = 15838368. Its totient is φ = 10441440.

The previous prime is 13125209. The next prime is 13125223. The reversal of 13125215 is 51252131.

It is a happy number.

13125215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13125215 - 2⁸ = 13124959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6347 + ... + 8156.

It is an arithmetic number, because the mean of its divisors is an integer number (1979796).

Almost surely, 2^13125215 is an apocalyptic number.

13125215 is a deficient number, since it is larger than the sum of its proper divisors (2713153).

13125215 is a wasteful number, since it uses less digits than its factorization.

13125215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14689.

The product of its digits is 300, while the sum is 20.

The square root of 13125215 is about 3622.8738592449. The cubic root of 13125215 is about 235.8859870141.

Adding to 13125215 its reverse (51252131), we get a palindrome (64377346).

The spelling of 13125215 in words is "thirteen million, one hundred twenty-five thousand, two hundred fifteen".