123934287 has 8 divisors (see below), whose sum is σ = 165609136. Its totient is φ = 82441152.

The previous prime is 123934277. The next prime is 123934289. The reversal of 123934287 is 782439321.

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

It is not a de Polignac number, because 123934287 - 2⁴ = 123934271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123934289) 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, 43828 + ... + 46569.

It is an arithmetic number, because the mean of its divisors is an integer number (20701142).

Almost surely, 2^123934287 is an apocalyptic number.

123934287 is a deficient number, since it is larger than the sum of its proper divisors (41674849).

123934287 is an equidigital number, since it uses as much as digits as its factorization.

123934287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90857.

The product of its digits is 72576, while the sum is 39.

The square root of 123934287 is about 11132.5777338404. The cubic root of 123934287 is about 498.5749918954.

The spelling of 123934287 in words is "one hundred twenty-three million, nine hundred thirty-four thousand, two hundred eighty-seven".