126506226 has 128 divisors (see below), whose sum is σ = 332808192. Its totient is φ = 31363200.

The previous prime is 126506221. The next prime is 126506227. The reversal of 126506226 is 622605621.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 126506193 and 126506202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126506221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1732926 + ... + 1732998.

It is an arithmetic number, because the mean of its divisors is an integer number (2600064).

Almost surely, 2^126506226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126506226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166404096).

126506226 is an abundant number, since it is smaller than the sum of its proper divisors (206301966).

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

126506226 is a wasteful number, since it uses less digits than its factorization.

126506226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 126506226 is about 11247.4986552566. The cubic root of 126506226 is about 502.0002883550. Note that the first 3 decimals are identical.

The spelling of 126506226 in words is "one hundred twenty-six million, five hundred six thousand, two hundred twenty-six".