123144132 has 24 divisors (see below), whose sum is σ = 287532000. Its totient is φ = 41020096.

The previous prime is 123144101. The next prime is 123144143. The reversal of 123144132 is 231441321.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 123144099 and 123144108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22744 + ... + 27632.

It is an arithmetic number, because the mean of its divisors is an integer number (11980500).

Almost surely, 2^123144132 is an apocalyptic number.

123144132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123144132 is an abundant number, since it is smaller than the sum of its proper divisors (164387868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123144132 is a wasteful number, since it uses less digits than its factorization.

123144132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6995 (or 6993 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 123144132 is about 11097.0325763242. The cubic root of 123144132 is about 497.5131611040.

Adding to 123144132 its reverse (231441321), we get a palindrome (354585453).

The spelling of 123144132 in words is "one hundred twenty-three million, one hundred forty-four thousand, one hundred thirty-two".