123758387 has 2 divisors, whose sum is σ = 123758388. Its totient is φ = 123758386.

The previous prime is 123758363. The next prime is 123758389. The reversal of 123758387 is 783857321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123758387 - 2²² = 119564083 is a prime.

It is a super-2 number, since 2×123758387² = 30632276705683538, which contains 22 as substring.

Together with 123758389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123758389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61879193 + 61879194.

It is an arithmetic number, because the mean of its divisors is an integer number (61879194).

Almost surely, 2^123758387 is an apocalyptic number.

123758387 is a deficient number, since it is larger than the sum of its proper divisors (1).

123758387 is an equidigital number, since it uses as much as digits as its factorization.

123758387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 44.

The square root of 123758387 is about 11124.6746918730. The cubic root of 123758387 is about 498.3390042966.

The spelling of 123758387 in words is "one hundred twenty-three million, seven hundred fifty-eight thousand, three hundred eighty-seven".