123850 has 12 divisors (see below), whose sum is σ = 230454. Its totient is φ = 49520.

The previous prime is 123833. The next prime is 123853. The reversal of 123850 is 58321.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 91809 + 32041 = 303^2 + 179^2 .

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (123853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1189 + ... + 1288.

2¹²³⁸⁵⁰ is an apocalyptic number.

123850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123850 is a deficient number, since it is larger than the sum of its proper divisors (106604).

123850 is a wasteful number, since it uses less digits than its factorization.

123850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489 (or 2484 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 123850 is about 351.9232870954. The cubic root of 123850 is about 49.8461940262.

The spelling of 123850 in words is "one hundred twenty-three thousand, eight hundred fifty".