123942966 has 32 divisors (see below), whose sum is σ = 298210560. Its totient is φ = 33548256.

The previous prime is 123942943. The next prime is 123942967. The reversal of 123942966 is 669249321.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123942967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76861 + ... + 78456.

It is an arithmetic number, because the mean of its divisors is an integer number (9319080).

Almost surely, 2^123942966 is an apocalyptic number.

123942966 is an abundant number, since it is smaller than the sum of its proper divisors (174267594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123942966 is a wasteful number, since it uses less digits than its factorization.

123942966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155348.

The product of its digits is 139968, while the sum is 42.

The square root of 123942966 is about 11132.9675289206. The cubic root of 123942966 is about 498.5866298676.

The spelling of 123942966 in words is "one hundred twenty-three million, nine hundred forty-two thousand, nine hundred sixty-six".