123454443 has 16 divisors (see below), whose sum is σ = 188305920. Its totient is φ = 70476096.

The previous prime is 123454439. The next prime is 123454453. The reversal of 123454443 is 344454321.

It is not a de Polignac number, because 123454443 - 2² = 123454439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123454443.

It is not an unprimeable number, because it can be changed into a prime (123454433) 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, 25471 + ... + 29927.

It is an arithmetic number, because the mean of its divisors is an integer number (11769120).

Almost surely, 2^123454443 is an apocalyptic number.

123454443 is a deficient number, since it is larger than the sum of its proper divisors (64851477).

123454443 is a wasteful number, since it uses less digits than its factorization.

123454443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5786.

The product of its digits is 23040, while the sum is 30.

The square root of 123454443 is about 11111.0054900535. The cubic root of 123454443 is about 497.9307051855.

The spelling of 123454443 in words is "one hundred twenty-three million, four hundred fifty-four thousand, four hundred forty-three".