12501630 has 48 divisors (see below), whose sum is σ = 34420464. Its totient is φ = 3137280.

The previous prime is 12501623. The next prime is 12501631. The reversal of 12501630 is 3610521.

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12501631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2556 + ... + 5615.

It is an arithmetic number, because the mean of its divisors is an integer number (717093).

Almost surely, 2^12501630 is an apocalyptic number.

12501630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12501630 is an abundant number, since it is smaller than the sum of its proper divisors (21918834).

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

12501630 is a wasteful number, since it uses less digits than its factorization.

12501630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8201 (or 8198 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 12501630 is about 3535.7644152290. The cubic root of 12501630 is about 232.0895289619.

It can be divided in two parts, 12501 and 630, that added together give a palindrome (13131).

The spelling of 12501630 in words is "twelve million, five hundred one thousand, six hundred thirty".