124321140 has 36 divisors (see below), whose sum is σ = 377108004. Its totient is φ = 33152256.

The previous prime is 124321133. The next prime is 124321159. The reversal of 124321140 is 41123421.

It can be written as a sum of positive squares in 2 ways, for example, as 75377124 + 48944016 = 8682^2 + 6996^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 345157 + ... + 345516.

Almost surely, 2^124321140 is an apocalyptic number.

124321140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124321140 is an abundant number, since it is smaller than the sum of its proper divisors (252786864).

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

124321140 is a wasteful number, since it uses less digits than its factorization.

124321140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690688 (or 690683 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 124321140 is about 11149.9390132861. The cubic root of 124321140 is about 499.0932097905.

Adding to 124321140 its reverse (41123421), we get a palindrome (165444561).

The spelling of 124321140 in words is "one hundred twenty-four million, three hundred twenty-one thousand, one hundred forty".