146945893 has 2 divisors, whose sum is σ = 146945894. Its totient is φ = 146945892.

The previous prime is 146945891. The next prime is 146945959. The reversal of 146945893 is 398549641.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127735204 + 19210689 = 11302^2 + 4383^2 .

It is a cyclic number.

It is not a de Polignac number, because 146945893 - 2¹ = 146945891 is a prime.

Together with 146945891, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146945891) 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, 73472946 + 73472947.

It is an arithmetic number, because the mean of its divisors is an integer number (73472947).

Almost surely, 2^146945893 is an apocalyptic number.

It is an amenable number.

146945893 is a deficient number, since it is larger than the sum of its proper divisors (1).

146945893 is an equidigital number, since it uses as much as digits as its factorization.

146945893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 49.

The square root of 146945893 is about 12122.1241125473. The cubic root of 146945893 is about 527.6984487265.

The spelling of 146945893 in words is "one hundred forty-six million, nine hundred forty-five thousand, eight hundred ninety-three".