126947712 has 64 divisors (see below), whose sum is σ = 338607360. Its totient is φ = 42140160.

The previous prime is 126947699. The next prime is 126947719. The reversal of 126947712 is 217749621.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×126947712² = 32231443164069888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126947719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118893 + ... + 119955.

It is an arithmetic number, because the mean of its divisors is an integer number (5290740).

Almost surely, 2^126947712 is an apocalyptic number.

126947712 is a gapful number since it is divisible by the number (12) 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 126947712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169303680).

126947712 is an abundant number, since it is smaller than the sum of its proper divisors (211659648).

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

126947712 is a wasteful number, since it uses less digits than its factorization.

126947712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391 (or 1379 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The square root of 126947712 is about 11267.1075258915. The cubic root of 126947712 is about 502.5835766038.

The spelling of 126947712 in words is "one hundred twenty-six million, nine hundred forty-seven thousand, seven hundred twelve".