126127633 has 4 divisors (see below), whose sum is σ = 126618660. Its totient is φ = 125636608.

The previous prime is 126127621. The next prime is 126127657. The reversal of 126127633 is 336721621.

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

It can be written as a sum of positive squares in 2 ways, for example, as 121705024 + 4422609 = 11032^2 + 2103^2 .

It is a cyclic number.

It is not a de Polignac number, because 126127633 - 2²¹ = 124030481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126127595 and 126127604.

It is not an unprimeable number, because it can be changed into a prime (126127613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245128 + ... + 245641.

It is an arithmetic number, because the mean of its divisors is an integer number (31654665).

Almost surely, 2^126127633 is an apocalyptic number.

It is an amenable number.

126127633 is a deficient number, since it is larger than the sum of its proper divisors (491027).

126127633 is an equidigital number, since it uses as much as digits as its factorization.

126127633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491026.

The product of its digits is 9072, while the sum is 31.

The square root of 126127633 is about 11230.6559470051. The cubic root of 126127633 is about 501.4990121010.

The spelling of 126127633 in words is "one hundred twenty-six million, one hundred twenty-seven thousand, six hundred thirty-three".