12501000 has 128 divisors (see below), whose sum is σ = 43430400. Its totient is φ = 3326400.

The previous prime is 12500989. The next prime is 12501019. The reversal of 12501000 is 10521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26769 + ... + 27231.

It is an arithmetic number, because the mean of its divisors is an integer number (339300).

Almost surely, 2^12501000 is an apocalyptic number.

12501000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12501000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21715200).

12501000 is an abundant number, since it is smaller than the sum of its proper divisors (30929400).

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

12501000 is a wasteful number, since it uses less digits than its factorization.

12501000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493 (or 473 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 12501000 is about 3535.6753244607. The cubic root of 12501000 is about 232.0856303007.

Adding to 12501000 its reverse (10521), we get a palindrome (12511521).

The spelling of 12501000 in words is "twelve million, five hundred one thousand".