12851955 has 12 divisors (see below), whose sum is σ = 22276800. Its totient is φ = 6854352.

The previous prime is 12851939. The next prime is 12851977. The reversal of 12851955 is 55915821.

It is a happy number.

12851955 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 not a de Polignac number, because 12851955 - 2⁴ = 12851939 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142755 + ... + 142844.

It is an arithmetic number, because the mean of its divisors is an integer number (1856400).

Almost surely, 2^12851955 is an apocalyptic number.

12851955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12851955 is a deficient number, since it is larger than the sum of its proper divisors (9424845).

12851955 is a wasteful number, since it uses less digits than its factorization.

12851955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285610 (or 285607 counting only the distinct ones).

The product of its digits is 18000, while the sum is 36.

The square root of 12851955 is about 3584.9623428985. The cubic root of 12851955 is about 234.2374862663.

It can be divided in two parts, 1285 and 1955, that added together give a triangular number (3240 = T₈₀).

The spelling of 12851955 in words is "twelve million, eight hundred fifty-one thousand, nine hundred fifty-five".