12915951 has 8 divisors (see below), whose sum is σ = 17274624. Its totient is φ = 8583960.

The previous prime is 12915907. The next prime is 12915977. The reversal of 12915951 is 15951921.

It is a happy number.

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

It is not a de Polignac number, because 12915951 - 2⁹ = 12915439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12915901) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5511 + ... + 7496.

It is an arithmetic number, because the mean of its divisors is an integer number (2159328).

Almost surely, 2^12915951 is an apocalyptic number.

12915951 is a deficient number, since it is larger than the sum of its proper divisors (4358673).

12915951 is a wasteful number, since it uses less digits than its factorization.

12915951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13341.

The product of its digits is 4050, while the sum is 33.

The square root of 12915951 is about 3593.8768760212. The cubic root of 12915951 is about 234.6256360214.

The spelling of 12915951 in words is "twelve million, nine hundred fifteen thousand, nine hundred fifty-one".