12745998 has 80 divisors (see below), whose sum is σ = 31101840. Its totient is φ = 3888000.

The previous prime is 12745981. The next prime is 12746021. The reversal of 12745998 is 89954721.

12745998 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 39 ways as a sum of consecutive naturals, for example, 126148 + ... + 126248.

It is an arithmetic number, because the mean of its divisors is an integer number (388773).

Almost surely, 2^12745998 is an apocalyptic number.

12745998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12745998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15550920).

12745998 is an abundant number, since it is smaller than the sum of its proper divisors (18355842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12745998 is a wasteful number, since it uses less digits than its factorization.

12745998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 166 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 12745998 is about 3570.1537782006. The cubic root of 12745998 is about 233.5919911677.

The spelling of 12745998 in words is "twelve million, seven hundred forty-five thousand, nine hundred ninety-eight".