124990 has 16 divisors (see below), whose sum is σ = 233280. Its totient is φ = 48160.

The previous prime is 124987. The next prime is 124991. The reversal of 124990 is 99421.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124991) 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, 75 + ... + 505.

It is an arithmetic number, because the mean of its divisors is an integer number (14580).

2¹²⁴⁹⁹⁰ is an apocalyptic number.

124990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

124990 is a deficient number, since it is larger than the sum of its proper divisors (108290).

124990 is a wasteful number, since it uses less digits than its factorization.

124990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 124990 is about 353.5392481748. The cubic root of 124990 is about 49.9986666311.

It can be divided in two parts, 124 and 990, that multiplied together give a triangular number (122760 = T₄₉₅).

The spelling of 124990 in words is "one hundred twenty-four thousand, nine hundred ninety".