126225726 has 64 divisors (see below), whose sum is σ = 285880320. Its totient is φ = 36822240.

The previous prime is 126225713. The next prime is 126225727. The reversal of 126225726 is 627522621.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126225727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223921 + ... + 224483.

It is an arithmetic number, because the mean of its divisors is an integer number (4466880).

Almost surely, 2^126225726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126225726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142940160).

126225726 is an abundant number, since it is smaller than the sum of its proper divisors (159654594).

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

126225726 is a wasteful number, since it uses less digits than its factorization.

126225726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701.

The product of its digits is 20160, while the sum is 33.

The square root of 126225726 is about 11235.0222963731. The cubic root of 126225726 is about 501.6289883636.

The spelling of 126225726 in words is "one hundred twenty-six million, two hundred twenty-five thousand, seven hundred twenty-six".