126536265 has 48 divisors (see below), whose sum is σ = 230270976. Its totient is φ = 64195200.

The previous prime is 126536243. The next prime is 126536269. The reversal of 126536265 is 562635621.

It is a happy number.

126536265 is a `hidden beast` number, since 1 + 26 + 5 + 3 + 626 + 5 = 666.

It is not a de Polignac number, because 126536265 - 2⁵ = 126536233 is a prime.

It is a super-2 number, since 2×126536265² = 32022852720300450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126536269) 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 47 ways as a sum of consecutive naturals, for example, 84352 + ... + 85838.

It is an arithmetic number, because the mean of its divisors is an integer number (4797312).

Almost surely, 2^126536265 is an apocalyptic number.

126536265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126536265 is a deficient number, since it is larger than the sum of its proper divisors (103734711).

126536265 is a wasteful number, since it uses less digits than its factorization.

126536265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590 (or 1587 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 126536265 is about 11248.8339395690. The cubic root of 126536265 is about 502.0400186612.

The spelling of 126536265 in words is "one hundred twenty-six million, five hundred thirty-six thousand, two hundred sixty-five".