123096189 has 4 divisors (see below), whose sum is σ = 164128256. Its totient is φ = 82064124.

The previous prime is 123096187. The next prime is 123096191. The reversal of 123096189 is 981690321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (123096187) and next prime (123096191).

It is not a de Polignac number, because 123096189 - 2¹ = 123096187 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123096187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20516029 + ... + 20516034.

It is an arithmetic number, because the mean of its divisors is an integer number (41032064).

Almost surely, 2^123096189 is an apocalyptic number.

It is an amenable number.

123096189 is a deficient number, since it is larger than the sum of its proper divisors (41032067).

123096189 is an equidigital number, since it uses as much as digits as its factorization.

123096189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41032066.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 123096189 is about 11094.8721939462. The cubic root of 123096189 is about 497.4485880729.

The spelling of 123096189 in words is "one hundred twenty-three million, ninety-six thousand, one hundred eighty-nine".