123452144 has 10 divisors (see below), whose sum is σ = 239188560. Its totient is φ = 61726064.

The previous prime is 123452141. The next prime is 123452149. The reversal of 123452144 is 441254321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123452141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3857864 + ... + 3857895.

It is an arithmetic number, because the mean of its divisors is an integer number (23918856).

Almost surely, 2^123452144 is an apocalyptic number.

It is an amenable number.

123452144 is a deficient number, since it is larger than the sum of its proper divisors (115736416).

123452144 is an equidigital number, since it uses as much as digits as its factorization.

123452144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7715767 (or 7715761 counting only the distinct ones).

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

The square root of 123452144 is about 11110.9020335885. The cubic root of 123452144 is about 497.9276143023.

The spelling of 123452144 in words is "one hundred twenty-three million, four hundred fifty-two thousand, one hundred forty-four".