126728383 has 4 divisors (see below), whose sum is σ = 126750960. Its totient is φ = 126705808.

The previous prime is 126728369. The next prime is 126728429. The reversal of 126728383 is 383827621.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 126728383 - 2⁹ = 126727871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126728323) 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, 4398 + ... + 16516.

It is an arithmetic number, because the mean of its divisors is an integer number (31687740).

Almost surely, 2^126728383 is an apocalyptic number.

126728383 is a deficient number, since it is larger than the sum of its proper divisors (22577).

126728383 is a wasteful number, since it uses less digits than its factorization.

126728383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22576.

The product of its digits is 96768, while the sum is 40.

The square root of 126728383 is about 11257.3701635862. The cubic root of 126728383 is about 502.2939699748.

The spelling of 126728383 in words is "one hundred twenty-six million, seven hundred twenty-eight thousand, three hundred eighty-three".