124147871 has 4 divisors (see below), whose sum is σ = 126183144. Its totient is φ = 122112600.

The previous prime is 124147867. The next prime is 124147873. The reversal of 124147871 is 178741421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178741421 = 2521 ⋅70901.

It is a cyclic number.

It is not a de Polignac number, because 124147871 - 2² = 124147867 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 (124147873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1017545 + ... + 1017666.

It is an arithmetic number, because the mean of its divisors is an integer number (31545786).

Almost surely, 2^124147871 is an apocalyptic number.

124147871 is a deficient number, since it is larger than the sum of its proper divisors (2035273).

124147871 is an equidigital number, since it uses as much as digits as its factorization.

124147871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035272.

The product of its digits is 12544, while the sum is 35.

The square root of 124147871 is about 11142.1663512981. The cubic root of 124147871 is about 498.8612364039.

The spelling of 124147871 in words is "one hundred twenty-four million, one hundred forty-seven thousand, eight hundred seventy-one".