126722176 has 64 divisors (see below), whose sum is σ = 290234880. Its totient is φ = 53987328.

The previous prime is 126722137. The next prime is 126722177. The reversal of 126722176 is 671227621.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126722177) 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, 208465 + ... + 209071.

It is an arithmetic number, because the mean of its divisors is an integer number (4534920).

Almost surely, 2^126722176 is an apocalyptic number.

126722176 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 126722176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145117440).

126722176 is an abundant number, since it is smaller than the sum of its proper divisors (163512704).

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

126722176 is an equidigital number, since it uses as much as digits as its factorization.

126722176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 849 counting only the distinct ones).

The product of its digits is 14112, while the sum is 34.

The square root of 126722176 is about 11257.0944741527. The cubic root of 126722176 is about 502.2857692610.

Adding to 126722176 its reverse (671227621), we get a palindrome (797949797).

Subtracting 126722176 from its reverse (671227621), we obtain a palindrome (544505445).

The spelling of 126722176 in words is "one hundred twenty-six million, seven hundred twenty-two thousand, one hundred seventy-six".