123144434 has 32 divisors (see below), whose sum is σ = 223171200. Its totient is φ = 49783680.

The previous prime is 123144383. The next prime is 123144449. The reversal of 123144434 is 434441321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70694 + ... + 72414.

It is an arithmetic number, because the mean of its divisors is an integer number (6974100).

Almost surely, 2^123144434 is an apocalyptic number.

123144434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

123144434 is a deficient number, since it is larger than the sum of its proper divisors (100026766).

123144434 is a wasteful number, since it uses less digits than its factorization.

123144434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018.

The product of its digits is 4608, while the sum is 26.

The square root of 123144434 is about 11097.0461835571. The cubic root of 123144434 is about 497.5135678059.

Adding to 123144434 its reverse (434441321), we get a palindrome (557585755).

The spelling of 123144434 in words is "one hundred twenty-three million, one hundred forty-four thousand, four hundred thirty-four".