124002871 has 4 divisors (see below), whose sum is σ = 124025200. Its totient is φ = 123980544.

The previous prime is 124002859. The next prime is 124002877. The reversal of 124002871 is 178200421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 124002871 - 2¹⁷ = 123871799 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 (124002877) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 4390 + ... + 16348.

It is an arithmetic number, because the mean of its divisors is an integer number (31006300).

Almost surely, 2^124002871 is an apocalyptic number.

124002871 is a deficient number, since it is larger than the sum of its proper divisors (22329).

124002871 is a wasteful number, since it uses less digits than its factorization.

124002871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22328.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 124002871 is about 11135.6576366194. The cubic root of 124002871 is about 498.6669437472. Note that the first 3 decimals are identical.

The spelling of 124002871 in words is "one hundred twenty-four million, two thousand, eight hundred seventy-one".