124002143 has 4 divisors (see below), whose sum is σ = 124357800. Its totient is φ = 123646488.

The previous prime is 124002127. The next prime is 124002167. The reversal of 124002143 is 341200421.

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

It is a cyclic number.

It is not a de Polignac number, because 124002143 - 2⁴ = 124002127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124002103) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 177305 + ... + 178002.

It is an arithmetic number, because the mean of its divisors is an integer number (31089450).

Almost surely, 2^124002143 is an apocalyptic number.

124002143 is a deficient number, since it is larger than the sum of its proper divisors (355657).

124002143 is an equidigital number, since it uses as much as digits as its factorization.

124002143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355656.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 124002143 is about 11135.6249487849. The cubic root of 124002143 is about 498.6659678821.

Adding to 124002143 its reverse (341200421), we get a palindrome (465202564).

The spelling of 124002143 in words is "one hundred twenty-four million, two thousand, one hundred forty-three".