126534636 has 30 divisors (see below), whose sum is σ = 330787380. Its totient is φ = 42178104.

The previous prime is 126534631. The next prime is 126534643. The reversal of 126534636 is 636435621.

126534636 is a `hidden beast` number, since 12 + 6 + 5 + 3 + 4 + 636 = 666.

It is a super-2 number, since 2×126534636² = 32022028215304992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 126534636.

It is not an unprimeable number, because it can be changed into a prime (126534631) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 194946 + ... + 195593.

It is an arithmetic number, because the mean of its divisors is an integer number (11026246).

Almost surely, 2^126534636 is an apocalyptic number.

It is an amenable number.

126534636 is an abundant number, since it is smaller than the sum of its proper divisors (204252744).

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

126534636 is a wasteful number, since it uses less digits than its factorization.

126534636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390555 (or 390544 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 126534636 is about 11248.7615318310. The cubic root of 126534636 is about 502.0378642677.

The spelling of 126534636 in words is "one hundred twenty-six million, five hundred thirty-four thousand, six hundred thirty-six".