123379147 has 2 divisors, whose sum is σ = 123379148. Its totient is φ = 123379146.

The previous prime is 123379121. The next prime is 123379189. The reversal of 123379147 is 741973321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123379147 - 2⁷ = 123379019 is a prime.

It is not a weakly prime, because it can be changed into another prime (123379117) 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, 61689573 + 61689574.

It is an arithmetic number, because the mean of its divisors is an integer number (61689574).

Almost surely, 2^123379147 is an apocalyptic number.

123379147 is a deficient number, since it is larger than the sum of its proper divisors (1).

123379147 is an equidigital number, since it uses as much as digits as its factorization.

123379147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 37.

The square root of 123379147 is about 11107.6166210398. The cubic root of 123379147 is about 497.8294537594.

The spelling of 123379147 in words is "one hundred twenty-three million, three hundred seventy-nine thousand, one hundred forty-seven".