123346687 has 4 divisors (see below), whose sum is σ = 123672520. Its totient is φ = 123020856.

The previous prime is 123346681. The next prime is 123346703. The reversal of 123346687 is 786643321.

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 123346687 - 2¹⁵ = 123313919 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 (123346681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162348 + ... + 163105.

It is an arithmetic number, because the mean of its divisors is an integer number (30918130).

Almost surely, 2^123346687 is an apocalyptic number.

123346687 is a deficient number, since it is larger than the sum of its proper divisors (325833).

123346687 is an equidigital number, since it uses as much as digits as its factorization.

123346687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325832.

The product of its digits is 145152, while the sum is 40.

The square root of 123346687 is about 11106.1553653818. The cubic root of 123346687 is about 497.7857917041.

The spelling of 123346687 in words is "one hundred twenty-three million, three hundred forty-six thousand, six hundred eighty-seven".