100124242 has 4 divisors (see below), whose sum is σ = 150186366. Its totient is φ = 50062120.

The previous prime is 100124207. The next prime is 100124249. The reversal of 100124242 is 242421001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 64947481 + 35176761 = 8059^2 + 5931^2 .

It is not an unprimeable number, because it can be changed into a prime (100124249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25031059 + ... + 25031062.

Almost surely, 2^100124242 is an apocalyptic number.

100124242 is a deficient number, since it is larger than the sum of its proper divisors (50062124).

100124242 is an equidigital number, since it uses as much as digits as its factorization.

100124242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50062123.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 100124242 is about 10006.2101716884. The cubic root of 100124242 is about 464.3510305673.

Adding to 100124242 its reverse (242421001), we get a palindrome (342545243).

It can be divided in two parts, 1001 and 24242, that multiplied together give a palindrome (24266242).

The spelling of 100124242 in words is "one hundred million, one hundred twenty-four thousand, two hundred forty-two".