126442033 has 4 divisors (see below), whose sum is σ = 127862820. Its totient is φ = 125021248.

The previous prime is 126442031. The next prime is 126442051. The reversal of 126442033 is 330244621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 330244621 = 7 ⋅47177803.

It can be written as a sum of positive squares in 2 ways, for example, as 17698849 + 108743184 = 4207^2 + 10428^2 .

It is a cyclic number.

It is not a de Polignac number, because 126442033 - 2¹ = 126442031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126441989 and 126442007.

It is not an unprimeable number, because it can be changed into a prime (126442031) 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, 710260 + ... + 710437.

It is an arithmetic number, because the mean of its divisors is an integer number (31965705).

Almost surely, 2^126442033 is an apocalyptic number.

It is an amenable number.

126442033 is a deficient number, since it is larger than the sum of its proper divisors (1420787).

126442033 is an equidigital number, since it uses as much as digits as its factorization.

126442033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420786.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 126442033 is about 11244.6446364481. The cubic root of 126442033 is about 501.9153640587.

Adding to 126442033 its reverse (330244621), we get a palindrome (456686654).

The spelling of 126442033 in words is "one hundred twenty-six million, four hundred forty-two thousand, thirty-three".