123144462 has 120 divisors (see below), whose sum is σ = 328738608. Its totient is φ = 33747840.

The previous prime is 123144457. The next prime is 123144487. The reversal of 123144462 is 264441321.

It is a happy number.

123144462 is nontrivially palindromic in base 5.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1089718 + ... + 1089830.

Almost surely, 2^123144462 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123144462, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164369304).

123144462 is an abundant number, since it is smaller than the sum of its proper divisors (205594146).

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

123144462 is a wasteful number, since it uses less digits than its factorization.

123144462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 156 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 123144462 is about 11097.0474451540. The cubic root of 123144462 is about 497.5136055133.

Adding to 123144462 its reverse (264441321), we get a palindrome (387585783).

The spelling of 123144462 in words is "one hundred twenty-three million, one hundred forty-four thousand, four hundred sixty-two".