12761250 has 80 divisors (see below), whose sum is σ = 33064416. Its totient is φ = 3280000.

The previous prime is 12761219. The next prime is 12761257. The reversal of 12761250 is 5216721.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12761250.

It is not an unprimeable number, because it can be changed into a prime (12761257) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 153709 + ... + 153791.

Almost surely, 2^12761250 is an apocalyptic number.

12761250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12761250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16532208).

12761250 is an abundant number, since it is smaller than the sum of its proper divisors (20303166).

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

12761250 is an equidigital number, since it uses as much as digits as its factorization.

12761250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 12761250 is about 3572.2891820232. The cubic root of 12761250 is about 233.6851269352.

Adding to 12761250 its reverse (5216721), we get a palindrome (17977971).

The spelling of 12761250 in words is "twelve million, seven hundred sixty-one thousand, two hundred fifty".