126420255 has 24 divisors (see below), whose sum is σ = 235985568. Its totient is φ = 62237376.

The previous prime is 126420253. The next prime is 126420289. The reversal of 126420255 is 552024621.

126420255 is a `hidden beast` number, since 12 + 642 + 0 + 2 + 5 + 5 = 666.

It is not a de Polignac number, because 126420255 - 2¹ = 126420253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126420253) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 107467 + ... + 108636.

It is an arithmetic number, because the mean of its divisors is an integer number (9832732).

Almost surely, 2^126420255 is an apocalyptic number.

126420255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

126420255 is a deficient number, since it is larger than the sum of its proper divisors (109565313).

126420255 is a wasteful number, since it uses less digits than its factorization.

126420255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216127 (or 216124 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 126420255 is about 11243.6762226596. The cubic root of 126420255 is about 501.8865462673.

Adding to 126420255 its reverse (552024621), we get a palindrome (678444876).

The spelling of 126420255 in words is "one hundred twenty-six million, four hundred twenty thousand, two hundred fifty-five".