123430544 has 10 divisors (see below), whose sum is σ = 239146710. Its totient is φ = 61715264.

The previous prime is 123430543. The next prime is 123430553. The reversal of 123430544 is 445034321.

It can be written as a sum of positive squares in only one way, i.e., 90022144 + 33408400 = 9488^2 + 5780^2 .

It is not an unprimeable number, because it can be changed into a prime (123430543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3857189 + ... + 3857220.

It is an arithmetic number, because the mean of its divisors is an integer number (23914671).

Almost surely, 2^123430544 is an apocalyptic number.

It is an amenable number.

123430544 is a deficient number, since it is larger than the sum of its proper divisors (115716166).

123430544 is an equidigital number, since it uses as much as digits as its factorization.

123430544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7714417 (or 7714411 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 123430544 is about 11109.9299727766. The cubic root of 123430544 is about 497.8985723771.

Adding to 123430544 its reverse (445034321), we get a palindrome (568464865).

The spelling of 123430544 in words is "one hundred twenty-three million, four hundred thirty thousand, five hundred forty-four".