123494019 has 8 divisors (see below), whose sum is σ = 179627712. Its totient is φ = 74844840.

The previous prime is 123494011. The next prime is 123494023. The reversal of 123494019 is 910494321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123494019 - 2³ = 123494011 is a prime.

It is a super-2 number, since 2×123494019² = 30501545457544722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 3742243 = 123494019 / (1 + 2 + 3 + 4 + 9 + 4 + 0 + 1 + 9).

It is not an unprimeable number, because it can be changed into a prime (123494011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1871089 + ... + 1871154.

It is an arithmetic number, because the mean of its divisors is an integer number (22453464).

Almost surely, 2^123494019 is an apocalyptic number.

123494019 is a deficient number, since it is larger than the sum of its proper divisors (56133693).

123494019 is a wasteful number, since it uses less digits than its factorization.

123494019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3742257.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 123494019 is about 11112.7862842763. The cubic root of 123494019 is about 497.9839069976.

The spelling of 123494019 in words is "one hundred twenty-three million, four hundred ninety-four thousand, nineteen".