126423566 has 8 divisors (see below), whose sum is σ = 190051680. Its totient is φ = 63073008.

The previous prime is 126423533. The next prime is 126423593. The reversal of 126423566 is 665324621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68246 + ... + 70073.

It is an arithmetic number, because the mean of its divisors is an integer number (23756460).

Almost surely, 2^126423566 is an apocalyptic number.

126423566 is a deficient number, since it is larger than the sum of its proper divisors (63628114).

126423566 is a wasteful number, since it uses less digits than its factorization.

126423566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138778.

The product of its digits is 51840, while the sum is 35.

The square root of 126423566 is about 11243.8234600157. The cubic root of 126423566 is about 501.8909277694.

The spelling of 126423566 in words is "one hundred twenty-six million, four hundred twenty-three thousand, five hundred sixty-six".