12861950 has 12 divisors (see below), whose sum is σ = 23923320. Its totient is φ = 5144760.

The previous prime is 12861949. The next prime is 12861983. The reversal of 12861950 is 5916821.

12861950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128570 + ... + 128669.

It is an arithmetic number, because the mean of its divisors is an integer number (1993610).

Almost surely, 2^12861950 is an apocalyptic number.

12861950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12861950 is a deficient number, since it is larger than the sum of its proper divisors (11061370).

12861950 is a wasteful number, since it uses less digits than its factorization.

12861950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257251 (or 257246 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 12861950 is about 3586.3560894033. The cubic root of 12861950 is about 234.2981929064.

The spelling of 12861950 in words is "twelve million, eight hundred sixty-one thousand, nine hundred fifty".