12913850 has 12 divisors (see below), whose sum is σ = 24019854. Its totient is φ = 5165520.

The previous prime is 12913847. The next prime is 12913853. The reversal of 12913850 is 5831921.

It is an interprime number because it is at equal distance from previous prime (12913847) and next prime (12913853).

It can be written as a sum of positive squares in 3 ways, for example, as 5938969 + 6974881 = 2437^2 + 2641^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12913853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129089 + ... + 129188.

Almost surely, 2^12913850 is an apocalyptic number.

12913850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12913850 is a deficient number, since it is larger than the sum of its proper divisors (11106004).

12913850 is a wasteful number, since it uses less digits than its factorization.

12913850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258289 (or 258284 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 12913850 is about 3593.5845614094. The cubic root of 12913850 is about 234.6129133761.

The spelling of 12913850 in words is "twelve million, nine hundred thirteen thousand, eight hundred fifty".