146395139 has 4 divisors (see below), whose sum is σ = 159703800. Its totient is φ = 133086480.

The previous prime is 146395129. The next prime is 146395163. The reversal of 146395139 is 931593641.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 146395139 - 2⁸ = 146394883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 146395096 and 146395105.

It is not an unprimeable number, because it can be changed into a prime (146395129) 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 in 3 ways as a sum of consecutive naturals, for example, 6654314 + ... + 6654335.

It is an arithmetic number, because the mean of its divisors is an integer number (39925950).

Almost surely, 2^146395139 is an apocalyptic number.

146395139 is a deficient number, since it is larger than the sum of its proper divisors (13308661).

146395139 is a wasteful number, since it uses less digits than its factorization.

146395139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13308660.

The product of its digits is 87480, while the sum is 41.

The square root of 146395139 is about 12099.3858935072. The cubic root of 146395139 is about 527.0383511440.

The spelling of 146395139 in words is "one hundred forty-six million, three hundred ninety-five thousand, one hundred thirty-nine".