124403140 has 12 divisors (see below), whose sum is σ = 261246636. Its totient is φ = 49761248.

The previous prime is 124403131. The next prime is 124403141. The reversal of 124403140 is 41304421.

It can be written as a sum of positive squares in 2 ways, for example, as 99082116 + 25321024 = 9954^2 + 5032^2 .

It is a super-2 number, since 2×124403140² = 30952282483719200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (124403141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3110059 + ... + 3110098.

It is an arithmetic number, because the mean of its divisors is an integer number (21770553).

Almost surely, 2^124403140 is an apocalyptic number.

124403140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124403140 is an abundant number, since it is smaller than the sum of its proper divisors (136843496).

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

124403140 is a wasteful number, since it uses less digits than its factorization.

124403140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6220166 (or 6220164 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 124403140 is about 11153.6155572980. The cubic root of 124403140 is about 499.2029166582.

Adding to 124403140 its reverse (41304421), we get a palindrome (165707561).

The spelling of 124403140 in words is "one hundred twenty-four million, four hundred three thousand, one hundred forty".