146940193 has 2 divisors, whose sum is σ = 146940194. Its totient is φ = 146940192.

The previous prime is 146940191. The next prime is 146940229. The reversal of 146940193 is 391049641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124925329 + 22014864 = 11177^2 + 4692^2 .

It is a cyclic number.

It is not a de Polignac number, because 146940193 - 2¹ = 146940191 is a prime.

Together with 146940191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (146940191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73470096 + 73470097.

It is an arithmetic number, because the mean of its divisors is an integer number (73470097).

Almost surely, 2^146940193 is an apocalyptic number.

It is an amenable number.

146940193 is a deficient number, since it is larger than the sum of its proper divisors (1).

146940193 is an equidigital number, since it uses as much as digits as its factorization.

146940193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 146940193 is about 12121.8890029566. The cubic root of 146940193 is about 527.6916255346.

The spelling of 146940193 in words is "one hundred forty-six million, nine hundred forty thousand, one hundred ninety-three".