12544990 has 16 divisors (see below), whose sum is σ = 22900320. Its totient is φ = 4947040.

The previous prime is 12544981. The next prime is 12544999. The reversal of 12544990 is 9944521.

It is an interprime number because it is at equal distance from previous prime (12544981) and next prime (12544999).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12544999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8125 + ... + 9544.

It is an arithmetic number, because the mean of its divisors is an integer number (1431270).

Almost surely, 2^12544990 is an apocalyptic number.

12544990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12544990 is a deficient number, since it is larger than the sum of its proper divisors (10355330).

12544990 is a wasteful number, since it uses less digits than its factorization.

12544990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17747.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 12544990 is about 3541.8907380099. The cubic root of 12544990 is about 232.3575417433.

The spelling of 12544990 in words is "twelve million, five hundred forty-four thousand, nine hundred ninety".