124140242 has 8 divisors (see below), whose sum is σ = 192631500. Its totient is φ = 59929744.

The previous prime is 124140199. The next prime is 124140283. The reversal of 124140242 is 242041421.

It can be written as a sum of positive squares in 2 ways, for example, as 123899161 + 241081 = 11131^2 + 491^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1070117 + ... + 1070232.

Almost surely, 2^124140242 is an apocalyptic number.

124140242 is a deficient number, since it is larger than the sum of its proper divisors (68491258).

124140242 is a wasteful number, since it uses less digits than its factorization.

124140242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140380.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 124140242 is about 11141.8239978919. The cubic root of 124140242 is about 498.8510177018.

Adding to 124140242 its reverse (242041421), we get a palindrome (366181663).

The spelling of 124140242 in words is "one hundred twenty-four million, one hundred forty thousand, two hundred forty-two".