126365636 has 6 divisors (see below), whose sum is σ = 221139870. Its totient is φ = 63182816.

The previous prime is 126365627. The next prime is 126365647. The reversal of 126365636 is 636563621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 102414400 + 23951236 = 10120^2 + 4894^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 126365636.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 15795701 + ... + 15795708.

It is an arithmetic number, because the mean of its divisors is an integer number (36856645).

Almost surely, 2^126365636 is an apocalyptic number.

It is an amenable number.

126365636 is a deficient number, since it is larger than the sum of its proper divisors (94774234).

126365636 is a wasteful number, since it uses less digits than its factorization.

126365636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31591413 (or 31591411 counting only the distinct ones).

The product of its digits is 116640, while the sum is 38.

The square root of 126365636 is about 11241.2470838426. The cubic root of 126365636 is about 501.8142569810.

The spelling of 126365636 in words is "one hundred twenty-six million, three hundred sixty-five thousand, six hundred thirty-six".