126312630 has 64 divisors (see below), whose sum is σ = 310281408. Its totient is φ = 32901120.

The previous prime is 126312607. The next prime is 126312647. The reversal of 126312630 is 36213621.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 126312630.

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, 299820 + ... + 300240.

It is an arithmetic number, because the mean of its divisors is an integer number (4848147).

Almost surely, 2^126312630 is an apocalyptic number.

126312630 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 126312630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155140704).

126312630 is an abundant number, since it is smaller than the sum of its proper divisors (183968778).

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

126312630 is a wasteful number, since it uses less digits than its factorization.

126312630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 126312630 is about 11238.8891799857. The cubic root of 126312630 is about 501.7440826114.

Subtracting from 126312630 its reverse (36213621), we obtain a palindrome (90099009).

The spelling of 126312630 in words is "one hundred twenty-six million, three hundred twelve thousand, six hundred thirty".