123793919 has 4 divisors (see below), whose sum is σ = 125285496. Its totient is φ = 122302344.

The previous prime is 123793909. The next prime is 123793921. The reversal of 123793919 is 919397321.

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 123793919 - 2⁴ = 123793903 is a prime.

It is a super-2 number, since 2×123793919² = 30649868762757122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 123793919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123793909) 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, 745664 + ... + 745829.

It is an arithmetic number, because the mean of its divisors is an integer number (31321374).

Almost surely, 2^123793919 is an apocalyptic number.

123793919 is a deficient number, since it is larger than the sum of its proper divisors (1491577).

123793919 is an equidigital number, since it uses as much as digits as its factorization.

123793919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491576.

The product of its digits is 91854, while the sum is 44.

The square root of 123793919 is about 11126.2715677805. The cubic root of 123793919 is about 498.3866920738.

The spelling of 123793919 in words is "one hundred twenty-three million, seven hundred ninety-three thousand, nine hundred nineteen".