126020272 has 80 divisors (see below), whose sum is σ = 289124352. Its totient is φ = 52093440.

The previous prime is 126020249. The next prime is 126020287. The reversal of 126020272 is 272020621.

It is a super-2 number, since 2×126020272² = 31762217909907968, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659697 + ... + 659887.

Almost surely, 2^126020272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126020272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144562176).

126020272 is an abundant number, since it is smaller than the sum of its proper divisors (163104080).

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

126020272 is a wasteful number, since it uses less digits than its factorization.

126020272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 126020272 is about 11225.8751106540. The cubic root of 126020272 is about 501.3566781858.

Adding to 126020272 its reverse (272020621), we get a palindrome (398040893).

The spelling of 126020272 in words is "one hundred twenty-six million, twenty thousand, two hundred seventy-two".