146078939 has 2 divisors, whose sum is σ = 146078940. Its totient is φ = 146078938.

The previous prime is 146078927. The next prime is 146078953. The reversal of 146078939 is 939870641.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 146078939 - 2²⁴ = 129301723 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 146078893 and 146078902.

It is not a weakly prime, because it can be changed into another prime (146078239) 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, 73039469 + 73039470.

It is an arithmetic number, because the mean of its divisors is an integer number (73039470).

Almost surely, 2^146078939 is an apocalyptic number.

146078939 is a deficient number, since it is larger than the sum of its proper divisors (1).

146078939 is an equidigital number, since it uses as much as digits as its factorization.

146078939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 146078939 is about 12086.3120512421. The cubic root of 146078939 is about 526.6586262103.

The spelling of 146078939 in words is "one hundred forty-six million, seventy-eight thousand, nine hundred thirty-nine".