12816951 has 8 divisors (see below), whose sum is σ = 19530624. Its totient is φ = 7323960.

The previous prime is 12816949. The next prime is 12816953. The reversal of 12816951 is 15961821.

12816951 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12816949) and next prime (12816953).

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

It is not a de Polignac number, because 12816951 - 2¹ = 12816949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12816953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305145 + ... + 305186.

It is an arithmetic number, because the mean of its divisors is an integer number (2441328).

Almost surely, 2^12816951 is an apocalyptic number.

12816951 is a deficient number, since it is larger than the sum of its proper divisors (6713673).

12816951 is an equidigital number, since it uses as much as digits as its factorization.

12816951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610341.

The product of its digits is 4320, while the sum is 33.

The square root of 12816951 is about 3580.0769544802. The cubic root of 12816951 is about 234.0246339761.

The spelling of 12816951 in words is "twelve million, eight hundred sixteen thousand, nine hundred fifty-one".