123253219 has 4 divisors (see below), whose sum is σ = 127503360. Its totient is φ = 119003080.

The previous prime is 123253211. The next prime is 123253243. The reversal of 123253219 is 912352321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123253219 - 2³ = 123253211 is a prime.

It is a super-2 number, since 2×123253219² = 30382711987723922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123253211) 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, 2125027 + ... + 2125084.

It is an arithmetic number, because the mean of its divisors is an integer number (31875840).

Almost surely, 2^123253219 is an apocalyptic number.

123253219 is a deficient number, since it is larger than the sum of its proper divisors (4250141).

123253219 is an equidigital number, since it uses as much as digits as its factorization.

123253219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250140.

The product of its digits is 3240, while the sum is 28.

The square root of 123253219 is about 11101.9466311093. The cubic root of 123253219 is about 497.6600247820.

The spelling of 123253219 in words is "one hundred twenty-three million, two hundred fifty-three thousand, two hundred nineteen".