126216265 has 16 divisors (see below), whose sum is σ = 179066880. Its totient is φ = 83563200.

The previous prime is 126216263. The next prime is 126216269. The reversal of 126216265 is 562612621.

It is not a de Polignac number, because 126216265 - 2¹ = 126216263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126216263) 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 15 ways as a sum of consecutive naturals, for example, 61161 + ... + 63190.

It is an arithmetic number, because the mean of its divisors is an integer number (11191680).

Almost surely, 2^126216265 is an apocalyptic number.

It is an amenable number.

126216265 is a deficient number, since it is larger than the sum of its proper divisors (52850615).

126216265 is a wasteful number, since it uses less digits than its factorization.

126216265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124392.

The product of its digits is 8640, while the sum is 31.

The square root of 126216265 is about 11234.6012390294. The cubic root of 126216265 is about 501.6164551804.

Adding to 126216265 its reverse (562612621), we get a palindrome (688828886).

The spelling of 126216265 in words is "one hundred twenty-six million, two hundred sixteen thousand, two hundred sixty-five".