123618946 has 8 divisors (see below), whose sum is σ = 202285584. Its totient is φ = 56190420.

The previous prime is 123618931. The next prime is 123618947. The reversal of 123618946 is 649816321.

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

It is a junction number, because it is equal to n+sod(n) for n = 123618899 and 123618908.

It is not an unprimeable number, because it can be changed into a prime (123618947) 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 3 ways as a sum of consecutive naturals, for example, 2809500 + ... + 2809543.

It is an arithmetic number, because the mean of its divisors is an integer number (25285698).

Almost surely, 2^123618946 is an apocalyptic number.

123618946 is a deficient number, since it is larger than the sum of its proper divisors (78666638).

123618946 is a wasteful number, since it uses less digits than its factorization.

123618946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5619056.

The product of its digits is 62208, while the sum is 40.

The square root of 123618946 is about 11118.4057310390. The cubic root of 123618946 is about 498.1517711851.

The spelling of 123618946 in words is "one hundred twenty-three million, six hundred eighteen thousand, nine hundred forty-six".