126328733 has 4 divisors (see below), whose sum is σ = 128712348. Its totient is φ = 123945120.

The previous prime is 126328687. The next prime is 126328747. The reversal of 126328733 is 337823621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 337823621 = 487 ⋅693683.

It can be written as a sum of positive squares in 2 ways, for example, as 88604569 + 37724164 = 9413^2 + 6142^2 .

It is a cyclic number.

It is not a de Polignac number, because 126328733 - 2¹⁰ = 126327709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126328693 and 126328702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126328753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191728 + ... + 1191833.

It is an arithmetic number, because the mean of its divisors is an integer number (32178087).

Almost surely, 2^126328733 is an apocalyptic number.

It is an amenable number.

126328733 is a deficient number, since it is larger than the sum of its proper divisors (2383615).

126328733 is an equidigital number, since it uses as much as digits as its factorization.

126328733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383614.

The product of its digits is 36288, while the sum is 35.

The square root of 126328733 is about 11239.6055535770. The cubic root of 126328733 is about 501.7654033657.

The spelling of 126328733 in words is "one hundred twenty-six million, three hundred twenty-eight thousand, seven hundred thirty-three".