126205272 has 24 divisors (see below), whose sum is σ = 341806140. Its totient is φ = 42068400.

The previous prime is 126205267. The next prime is 126205283. The reversal of 126205272 is 272502621.

126205272 is a `hidden beast` number, since 12 + 620 + 5 + 27 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 876354 + ... + 876497.

Almost surely, 2^126205272 is an apocalyptic number.

126205272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

126205272 is an abundant number, since it is smaller than the sum of its proper divisors (215600868).

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

126205272 is a wasteful number, since it uses less digits than its factorization.

126205272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752863 (or 1752856 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 126205272 is about 11234.1119809267. Note that the first 3 decimals coincide. The cubic root of 126205272 is about 501.6018917383.

Adding to 126205272 its reverse (272502621), we get a palindrome (398707893).

The spelling of 126205272 in words is "one hundred twenty-six million, two hundred five thousand, two hundred seventy-two".