126923866 has 8 divisors (see below), whose sum is σ = 190512000. Its totient is φ = 63419868.

The previous prime is 126923861. The next prime is 126923869. The reversal of 126923866 is 668329621.

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

It is a super-2 number, since 2×126923866² = 32219335520771912, which contains 22 as substring.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (126923861) 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, 17116 + ... + 23383.

It is an arithmetic number, because the mean of its divisors is an integer number (23814000).

Almost surely, 2^126923866 is an apocalyptic number.

126923866 is a deficient number, since it is larger than the sum of its proper divisors (63588134).

126923866 is a wasteful number, since it uses less digits than its factorization.

126923866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42068.

The product of its digits is 186624, while the sum is 43.

The square root of 126923866 is about 11266.0492631623. The cubic root of 126923866 is about 502.5521060131.

The spelling of 126923866 in words is "one hundred twenty-six million, nine hundred twenty-three thousand, eight hundred sixty-six".