146122439 has 2 divisors, whose sum is σ = 146122440. Its totient is φ = 146122438.

The previous prime is 146122399. The next prime is 146122441. The reversal of 146122439 is 934221641.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146122439 is a prime.

Together with 146122441, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146122469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73061219 + 73061220.

It is an arithmetic number, because the mean of its divisors is an integer number (73061220).

Almost surely, 2^146122439 is an apocalyptic number.

146122439 is a deficient number, since it is larger than the sum of its proper divisors (1).

146122439 is an equidigital number, since it uses as much as digits as its factorization.

146122439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 146122439 is about 12088.1114736753. Note that the first 3 decimals coincide. The cubic root of 146122439 is about 526.7108978946.

The spelling of 146122439 in words is "one hundred forty-six million, one hundred twenty-two thousand, four hundred thirty-nine".