12134215 has 16 divisors (see below), whose sum is σ = 14902272. Its totient is φ = 9483264.

The previous prime is 12134203. The next prime is 12134233. The reversal of 12134215 is 51243121.

It is a cyclic number.

It is not a de Polignac number, because 12134215 - 2²³ = 3745607 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12134192 and 12134201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61497 + ... + 61693.

It is an arithmetic number, because the mean of its divisors is an integer number (931392).

Almost surely, 2^12134215 is an apocalyptic number.

12134215 is a deficient number, since it is larger than the sum of its proper divisors (2768057).

12134215 is a wasteful number, since it uses less digits than its factorization.

12134215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426.

The product of its digits is 240, while the sum is 19.

The square root of 12134215 is about 3483.4200148704. The cubic root of 12134215 is about 229.7932294173.

Adding to 12134215 its reverse (51243121), we get a palindrome (63377336).

The spelling of 12134215 in words is "twelve million, one hundred thirty-four thousand, two hundred fifteen".