126247020 has 96 divisors (see below), whose sum is σ = 378604800. Its totient is φ = 31336704.

The previous prime is 126247019. The next prime is 126247031. The reversal of 126247020 is 20742621.

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, 66322 + ... + 68198.

It is an arithmetic number, because the mean of its divisors is an integer number (3943800).

Almost surely, 2^126247020 is an apocalyptic number.

126247020 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 126247020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189302400).

126247020 is an abundant number, since it is smaller than the sum of its proper divisors (252357780).

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

126247020 is a wasteful number, since it uses less digits than its factorization.

126247020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967 (or 1965 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 126247020 is about 11235.9699180801. The cubic root of 126247020 is about 501.6571946767.

Adding to 126247020 its reverse (20742621), we get a palindrome (146989641).

The spelling of 126247020 in words is "one hundred twenty-six million, two hundred forty-seven thousand, twenty".