123190 has 16 divisors (see below), whose sum is σ = 225792. Its totient is φ = 48384.

The previous prime is 123169. The next prime is 123191. The reversal of 123190 is 91321.

It is a super-2 number, since 2×123190² = 30351552200, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123191) by changing a digit.

123190 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 907 + ... + 1033.

It is an arithmetic number, because the mean of its divisors is an integer number (14112).

2¹²³¹⁹⁰ is an apocalyptic number.

123190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123190 is a deficient number, since it is larger than the sum of its proper divisors (102602).

123190 is a wasteful number, since it uses less digits than its factorization.

123190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 123190 is about 350.9843301346. The cubic root of 123190 is about 49.7574923692.

It can be divided in two parts, 123 and 190, that added together give a palindrome (313).

The spelling of 123190 in words is "one hundred twenty-three thousand, one hundred ninety".