12537630 has 72 divisors (see below), whose sum is σ = 37933272. Its totient is φ = 2864736.

The previous prime is 12537601. The next prime is 12537631. The reversal of 12537630 is 3673521.

It is a happy number.

12537630 is a `hidden beast` number, since 1 + 25 + 3 + 7 + 630 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12537594 and 12537603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12537631) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2989 + ... + 5831.

It is an arithmetic number, because the mean of its divisors is an integer number (526851).

Almost surely, 2^12537630 is an apocalyptic number.

12537630 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 12537630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18966636).

12537630 is an abundant number, since it is smaller than the sum of its proper divisors (25395642).

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

12537630 is a wasteful number, since it uses less digits than its factorization.

12537630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870 (or 2860 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 12537630 is about 3540.8515924845. The cubic root of 12537630 is about 232.3120923631.

The spelling of 12537630 in words is "twelve million, five hundred thirty-seven thousand, six hundred thirty".