126633239 has 4 divisors (see below), whose sum is σ = 132139056. Its totient is φ = 121127424.

The previous prime is 126633229. The next prime is 126633251. The reversal of 126633239 is 932336621.

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

It is a cyclic number.

It is not a de Polignac number, because 126633239 - 2¹² = 126629143 is a prime.

It is a super-2 number, since 2×126633239² = 32071954439262242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126633199 and 126633208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126633229) 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 3 ways as a sum of consecutive naturals, for example, 2752874 + ... + 2752919.

It is an arithmetic number, because the mean of its divisors is an integer number (33034764).

Almost surely, 2^126633239 is an apocalyptic number.

126633239 is a deficient number, since it is larger than the sum of its proper divisors (5505817).

126633239 is an equidigital number, since it uses as much as digits as its factorization.

126633239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5505816.

The product of its digits is 34992, while the sum is 35.

The square root of 126633239 is about 11253.1435163691. The cubic root of 126633239 is about 502.1682359148.

The spelling of 126633239 in words is "one hundred twenty-six million, six hundred thirty-three thousand, two hundred thirty-nine".