126036634 has 4 divisors (see below), whose sum is σ = 189054954. Its totient is φ = 63018316.

The previous prime is 126036629. The next prime is 126036637. The reversal of 126036634 is 436630621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 98505625 + 27531009 = 9925^2 + 5247^2 .

It is a super-2 number, since 2×126036634² = 31770466220099912, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 126036596 and 126036605.

It is not an unprimeable number, because it can be changed into a prime (126036637) 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 as a sum of consecutive naturals, namely, 31509157 + ... + 31509160.

Almost surely, 2^126036634 is an apocalyptic number.

126036634 is a deficient number, since it is larger than the sum of its proper divisors (63018320).

126036634 is an equidigital number, since it uses as much as digits as its factorization.

126036634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63018319.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 126036634 is about 11226.6038497847. The cubic root of 126036634 is about 501.3783753378.

The spelling of 126036634 in words is "one hundred twenty-six million, thirty-six thousand, six hundred thirty-four".