124205130 has 64 divisors (see below), whose sum is σ = 378535680. Its totient is φ = 28389312.

The previous prime is 124205117. The next prime is 124205131. The reversal of 124205130 is 31502421.

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

It is not an unprimeable number, because it can be changed into a prime (124205131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30969 + ... + 34748.

It is an arithmetic number, because the mean of its divisors is an integer number (5914620).

Almost surely, 2^124205130 is an apocalyptic number.

124205130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

124205130 is an abundant number, since it is smaller than the sum of its proper divisors (254330550).

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

124205130 is a wasteful number, since it uses less digits than its factorization.

124205130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65740 (or 65734 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 124205130 is about 11144.7355284906. The cubic root of 124205130 is about 498.9379188982.

Adding to 124205130 its reverse (31502421), we get a palindrome (155707551).

The spelling of 124205130 in words is "one hundred twenty-four million, two hundred five thousand, one hundred thirty".