124139873 has 8 divisors (see below), whose sum is σ = 145842816. Its totient is φ = 104173200.

The previous prime is 124139843. The next prime is 124139881. The reversal of 124139873 is 378931421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 124139873 - 2²² = 119945569 is a prime.

It is a super-2 number, since 2×124139873² = 30821416136912258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124139843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433913 + ... + 434198.

It is an arithmetic number, because the mean of its divisors is an integer number (18230352).

Almost surely, 2^124139873 is an apocalyptic number.

124139873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

124139873 is a deficient number, since it is larger than the sum of its proper divisors (21702943).

124139873 is a wasteful number, since it uses less digits than its factorization.

124139873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868135.

The product of its digits is 36288, while the sum is 38.

The square root of 124139873 is about 11141.8074386520. The cubic root of 124139873 is about 498.8505234323.

It can be divided in two parts, 1241 and 39873, that added together give a palindrome (41114).

The spelling of 124139873 in words is "one hundred twenty-four million, one hundred thirty-nine thousand, eight hundred seventy-three".