126021696 has 84 divisors (see below), whose sum is σ = 345039696. Its totient is φ = 40592640.

The previous prime is 126021683. The next prime is 126021703. The reversal of 126021696 is 696120621.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184171 + ... + 184853.

Almost surely, 2^126021696 is an apocalyptic number.

126021696 is a gapful number since it is divisible by the number (16) 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 126021696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172519848).

126021696 is an abundant number, since it is smaller than the sum of its proper divisors (219018000).

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

126021696 is an equidigital number, since it uses as much as digits as its factorization.

126021696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 126021696 is about 11225.9385353742. The cubic root of 126021696 is about 501.3585665837.

The spelling of 126021696 in words is "one hundred twenty-six million, twenty-one thousand, six hundred ninety-six".