123287093 has 4 divisors (see below), whose sum is σ = 127264128. Its totient is φ = 119310060.

The previous prime is 123287083. The next prime is 123287137. The reversal of 123287093 is 390782321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123287093 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 (123287083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1988471 + ... + 1988532.

It is an arithmetic number, because the mean of its divisors is an integer number (31816032).

Almost surely, 2^123287093 is an apocalyptic number.

It is an amenable number.

123287093 is a deficient number, since it is larger than the sum of its proper divisors (3977035).

123287093 is an equidigital number, since it uses as much as digits as its factorization.

123287093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3977034.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 123287093 is about 11103.4721146135. The cubic root of 123287093 is about 497.7056116686.

The spelling of 123287093 in words is "one hundred twenty-three million, two hundred eighty-seven thousand, ninety-three".