126120272 has 40 divisors (see below), whose sum is σ = 252695136. Its totient is φ = 60932736.

The previous prime is 126120259. The next prime is 126120299. The reversal of 126120272 is 272021621.

It is a happy number.

It is a super-4 number, since 4×126120272⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95843 + ... + 97149.

Almost surely, 2^126120272 is an apocalyptic number.

It is an amenable number.

126120272 is an abundant number, since it is smaller than the sum of its proper divisors (126574864).

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

126120272 is a wasteful number, since it uses less digits than its factorization.

126120272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515 (or 1509 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 126120272 is about 11230.3282231643. The cubic root of 126120272 is about 501.4892558302.

Adding to 126120272 its reverse (272021621), we get a palindrome (398141893).

The spelling of 126120272 in words is "one hundred twenty-six million, one hundred twenty thousand, two hundred seventy-two".