123445441 has 16 divisors (see below), whose sum is σ = 146341888. Its totient is φ = 101898000.

The previous prime is 123445433. The next prime is 123445447. The reversal of 123445441 is 144544321.

It is a cyclic number.

It is not a de Polignac number, because 123445441 - 2³ = 123445433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123445447) 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 15 ways as a sum of consecutive naturals, for example, 47116 + ... + 49666.

It is an arithmetic number, because the mean of its divisors is an integer number (9146368).

Almost surely, 2^123445441 is an apocalyptic number.

It is an amenable number.

123445441 is a deficient number, since it is larger than the sum of its proper divisors (22896447).

123445441 is a wasteful number, since it uses less digits than its factorization.

123445441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2812.

The product of its digits is 7680, while the sum is 28.

The square root of 123445441 is about 11110.6003888179. The cubic root of 123445441 is about 497.9186022563.

Adding to 123445441 its reverse (144544321), we get a palindrome (267989762).

The spelling of 123445441 in words is "one hundred twenty-three million, four hundred forty-five thousand, four hundred forty-one".