123339190 has 32 divisors (see below), whose sum is σ = 240045120. Its totient is φ = 45358464.

The previous prime is 123339187. The next prime is 123339191. The reversal of 123339190 is 91933321.

It is a super-2 number, since 2×123339190² = 30425111579712200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123339191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33207 + ... + 36733.

It is an arithmetic number, because the mean of its divisors is an integer number (7501410).

Almost surely, 2^123339190 is an apocalyptic number.

123339190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123339190 is a deficient number, since it is larger than the sum of its proper divisors (116705930).

123339190 is a wasteful number, since it uses less digits than its factorization.

123339190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3816.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 123339190 is about 11105.8178447154. The cubic root of 123339190 is about 497.7757063753.

The spelling of 123339190 in words is "one hundred twenty-three million, three hundred thirty-nine thousand, one hundred ninety".