123944867 has 2 divisors, whose sum is σ = 123944868. Its totient is φ = 123944866.

The previous prime is 123944839. The next prime is 123944879. The reversal of 123944867 is 768449321.

It is a strong prime.

It is an emirp because it is prime and its reverse (768449321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123944867 - 2²² = 119750563 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123944827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61972433 + 61972434.

It is an arithmetic number, because the mean of its divisors is an integer number (61972434).

Almost surely, 2^123944867 is an apocalyptic number.

123944867 is a deficient number, since it is larger than the sum of its proper divisors (1).

123944867 is an equidigital number, since it uses as much as digits as its factorization.

123944867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 44.

The square root of 123944867 is about 11133.0529056499. The cubic root of 123944867 is about 498.5891789119.

The spelling of 123944867 in words is "one hundred twenty-three million, nine hundred forty-four thousand, eight hundred sixty-seven".