126366823 has 4 divisors (see below), whose sum is σ = 137854728. Its totient is φ = 114878920.

The previous prime is 126366817. The next prime is 126366827. The reversal of 126366823 is 328663621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126366823 is a prime.

It is a super-2 number, since 2×126366823² = 31937147910226658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126366827) 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, 5743936 + ... + 5743957.

It is an arithmetic number, because the mean of its divisors is an integer number (34463682).

Almost surely, 2^126366823 is an apocalyptic number.

126366823 is a deficient number, since it is larger than the sum of its proper divisors (11487905).

126366823 is a wasteful number, since it uses less digits than its factorization.

126366823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11487904.

The product of its digits is 62208, while the sum is 37.

The square root of 126366823 is about 11241.2998803519. The cubic root of 126366823 is about 501.8158282195.

It can be divided in two parts, 1263 and 66823, that added together give a palindrome (68086).

The spelling of 126366823 in words is "one hundred twenty-six million, three hundred sixty-six thousand, eight hundred twenty-three".