126366379 has 4 divisors (see below), whose sum is σ = 129305176. Its totient is φ = 123427584.

The previous prime is 126366371. The next prime is 126366391. The reversal of 126366379 is 973663621.

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 126366379 - 2³ = 126366371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 2938753 = 126366379 / (1 + 2 + 6 + 3 + 6 + 6 + 3 + 7 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126366371) 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, 1469334 + ... + 1469419.

It is an arithmetic number, because the mean of its divisors is an integer number (32326294).

Almost surely, 2^126366379 is an apocalyptic number.

126366379 is a deficient number, since it is larger than the sum of its proper divisors (2938797).

126366379 is an equidigital number, since it uses as much as digits as its factorization.

126366379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2938796.

The product of its digits is 244944, while the sum is 43.

The square root of 126366379 is about 11241.2801317288. The cubic root of 126366379 is about 501.8152404954.

The spelling of 126366379 in words is "one hundred twenty-six million, three hundred sixty-six thousand, three hundred seventy-nine".