124387 has 4 divisors (see below), whose sum is σ = 125280. Its totient is φ = 123496.

The previous prime is 124367. The next prime is 124427. The reversal of 124387 is 783421.

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 a de Polignac number, because none of the positive numbers 2^k-124387 is a prime.

It is a d-powerful number, because it can be written as 1 + 2¹¹ + 3⁴ + 4⁶ + 8³ + 7⁶ .

It is a Duffinian number.

124387 is a lucky number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (124337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187 + ... + 532.

It is an arithmetic number, because the mean of its divisors is an integer number (31320).

2¹²⁴³⁸⁷ is an apocalyptic number.

124387 is a deficient number, since it is larger than the sum of its proper divisors (893).

124387 is an equidigital number, since it uses as much as digits as its factorization.

124387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892.

The product of its digits is 1344, while the sum is 25.

The square root of 124387 is about 352.6854122302. The cubic root of 124387 is about 49.9181326947.

The spelling of 124387 in words is "one hundred twenty-four thousand, three hundred eighty-seven".