124390 has 16 divisors (see below), whose sum is σ = 256032. Its totient is φ = 42624.

The previous prime is 124367. The next prime is 124427. The reversal of 124390 is 93421.

It is a congruent number.

It is an unprimeable number.

124390 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 819 + ... + 958.

It is an arithmetic number, because the mean of its divisors is an integer number (16002).

2¹²⁴³⁹⁰ is an apocalyptic number.

124390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

124390 is an abundant number, since it is smaller than the sum of its proper divisors (131642).

It is a weird number, because it is abundant, but not a pseudoperfect number.

124390 is a wasteful number, since it uses less digits than its factorization.

124390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 124390 is about 352.6896652866. The cubic root of 124390 is about 49.9185340046.

The spelling of 124390 in words is "one hundred twenty-four thousand, three hundred ninety".