123944263 has 16 divisors (see below), whose sum is σ = 139548096. Its totient is φ = 109457920.

The previous prime is 123944257. The next prime is 123944267. The reversal of 123944263 is 362449321.

It is a happy number.

It is not a de Polignac number, because 123944263 - 2⁹ = 123943751 is a prime.

It is a super-2 number, since 2×123944263² = 30724360661226338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123944267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17733 + ... + 23713.

It is an arithmetic number, because the mean of its divisors is an integer number (8721756).

Almost surely, 2^123944263 is an apocalyptic number.

123944263 is a deficient number, since it is larger than the sum of its proper divisors (15603833).

123944263 is a wasteful number, since it uses less digits than its factorization.

123944263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6074.

The product of its digits is 31104, while the sum is 34.

The square root of 123944263 is about 11133.0257791851. The cubic root of 123944263 is about 498.5883690132.

The spelling of 123944263 in words is "one hundred twenty-three million, nine hundred forty-four thousand, two hundred sixty-three".