12985951 has 8 divisors (see below), whose sum is σ = 14200704. Its totient is φ = 11776920.

The previous prime is 12985919. The next prime is 12985969. The reversal of 12985951 is 15958921.

12985951 is digitally balanced in base 3, 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 a cyclic number.

It is not a de Polignac number, because 12985951 - 2⁵ = 12985919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12985981) 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, 4360 + ... + 6706.

It is an arithmetic number, because the mean of its divisors is an integer number (1775088).

Almost surely, 2^12985951 is an apocalyptic number.

12985951 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12985951 is a deficient number, since it is larger than the sum of its proper divisors (1214753).

12985951 is a wasteful number, since it uses less digits than its factorization.

12985951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2861.

The product of its digits is 32400, while the sum is 40.

The square root of 12985951 is about 3603.6025030516. The cubic root of 12985951 is about 235.0487359310.

The spelling of 12985951 in words is "twelve million, nine hundred eighty-five thousand, nine hundred fifty-one".