123125444 has 12 divisors (see below), whose sum is σ = 232044204. Its totient is φ = 56827104.

The previous prime is 123125423. The next prime is 123125449. The reversal of 123125444 is 444521321.

It can be written as a sum of positive squares in 2 ways, for example, as 76038400 + 47087044 = 8720^2 + 6862^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (123125449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1183847 + ... + 1183950.

It is an arithmetic number, because the mean of its divisors is an integer number (19337017).

Almost surely, 2^123125444 is an apocalyptic number.

It is an amenable number.

123125444 is a deficient number, since it is larger than the sum of its proper divisors (108918760).

123125444 is a wasteful number, since it uses less digits than its factorization.

123125444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2367814 (or 2367812 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 123125444 is about 11096.1905174704. The cubic root of 123125444 is about 497.4879927744.

Adding to 123125444 its reverse (444521321), we get a palindrome (567646765).

The spelling of 123125444 in words is "one hundred twenty-three million, one hundred twenty-five thousand, four hundred forty-four".