124143242 has 4 divisors (see below), whose sum is σ = 186214866. Its totient is φ = 62071620.

The previous prime is 124143209. The next prime is 124143311. The reversal of 124143242 is 242341421.

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., 113443801 + 10699441 = 10651^2 + 3271^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31035809 + ... + 31035812.

Almost surely, 2^124143242 is an apocalyptic number.

124143242 is a deficient number, since it is larger than the sum of its proper divisors (62071624).

124143242 is an equidigital number, since it uses as much as digits as its factorization.

124143242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62071623.

The product of its digits is 1536, while the sum is 23.

The square root of 124143242 is about 11141.9586249456. The cubic root of 124143242 is about 498.8550361167.

Adding to 124143242 its reverse (242341421), we get a palindrome (366484663).

The spelling of 124143242 in words is "one hundred twenty-four million, one hundred forty-three thousand, two hundred forty-two".