124189668 has 18 divisors (see below), whose sum is σ = 313923974. Its totient is φ = 41396544.

The previous prime is 124189661. The next prime is 124189727. The reversal of 124189668 is 866981421.

It can be written as a sum of positive squares in only one way, i.e., 100160064 + 24029604 = 10008^2 + 4902^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (124189661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1724821 + ... + 1724892.

Almost surely, 2^124189668 is an apocalyptic number.

124189668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

124189668 is an abundant number, since it is smaller than the sum of its proper divisors (189734306).

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

124189668 is a wasteful number, since it uses less digits than its factorization.

124189668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3449723 (or 3449718 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 124189668 is about 11144.0418161455. The cubic root of 124189668 is about 498.9172141757.

It can be divided in two parts, 1241 and 89668, that added together give a palindrome (90909).

The spelling of 124189668 in words is "one hundred twenty-four million, one hundred eighty-nine thousand, six hundred sixty-eight".