123886319 has 2 divisors, whose sum is σ = 123886320. Its totient is φ = 123886318.

The previous prime is 123886271. The next prime is 123886331. The reversal of 123886319 is 913688321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123886319 is a prime.

It is a super-2 number, since 2×123886319² = 30695640070739522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123886369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61943159 + 61943160.

It is an arithmetic number, because the mean of its divisors is an integer number (61943160).

Almost surely, 2^123886319 is an apocalyptic number.

123886319 is a deficient number, since it is larger than the sum of its proper divisors (1).

123886319 is an equidigital number, since it uses as much as digits as its factorization.

123886319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 41.

The square root of 123886319 is about 11130.4231276264. The cubic root of 123886319 is about 498.5106601383.

The spelling of 123886319 in words is "one hundred twenty-three million, eight hundred eighty-six thousand, three hundred nineteen".