146392481 has 2 divisors, whose sum is σ = 146392482. Its totient is φ = 146392480.

The previous prime is 146392471. The next prime is 146392489. The reversal of 146392481 is 184293641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75411856 + 70980625 = 8684^2 + 8425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146392481 is a prime.

It is a super-2 number, since 2×146392481² = 42861516986670722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146392489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73196240 + 73196241.

It is an arithmetic number, because the mean of its divisors is an integer number (73196241).

Almost surely, 2^146392481 is an apocalyptic number.

It is an amenable number.

146392481 is a deficient number, since it is larger than the sum of its proper divisors (1).

146392481 is an equidigital number, since it uses as much as digits as its factorization.

146392481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 146392481 is about 12099.2760527232. The cubic root of 146392481 is about 527.0351614287.

The spelling of 146392481 in words is "one hundred forty-six million, three hundred ninety-two thousand, four hundred eighty-one".