12899375 has 10 divisors (see below), whose sum is σ = 16119840. Its totient is φ = 10319000.

The previous prime is 12899371. The next prime is 12899431. The reversal of 12899375 is 57399821.

12899375 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12899375 - 2² = 12899371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12899371) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9695 + ... + 10944.

It is an arithmetic number, because the mean of its divisors is an integer number (1611984).

Almost surely, 2^12899375 is an apocalyptic number.

12899375 is a deficient number, since it is larger than the sum of its proper divisors (3220465).

12899375 is an frugal number, since it uses more digits than its factorization.

12899375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20659 (or 20644 counting only the distinct ones).

The product of its digits is 136080, while the sum is 44.

The square root of 12899375 is about 3591.5699909650. The cubic root of 12899375 is about 234.5252222133.

The spelling of 12899375 in words is "twelve million, eight hundred ninety-nine thousand, three hundred seventy-five".