123146369 has 2 divisors, whose sum is σ = 123146370. Its totient is φ = 123146368.

The previous prime is 123146357. The next prime is 123146377. The reversal of 123146369 is 963641321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77651344 + 45495025 = 8812^2 + 6745^2 .

It is an emirp because it is prime and its reverse (963641321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123146369 is a prime.

It is a super-2 number, since 2×123146369² = 30330056395768322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123146269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61573184 + 61573185.

It is an arithmetic number, because the mean of its divisors is an integer number (61573185).

Almost surely, 2^123146369 is an apocalyptic number.

It is an amenable number.

123146369 is a deficient number, since it is larger than the sum of its proper divisors (1).

123146369 is an equidigital number, since it uses as much as digits as its factorization.

123146369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 35.

The square root of 123146369 is about 11097.1333685777. The cubic root of 123146369 is about 497.5161736449.

The spelling of 123146369 in words is "one hundred twenty-three million, one hundred forty-six thousand, three hundred sixty-nine".