146890243 has 2 divisors, whose sum is σ = 146890244. Its totient is φ = 146890242.

The previous prime is 146890231. The next prime is 146890297. The reversal of 146890243 is 342098641.

It is a weak prime.

It is an emirp because it is prime and its reverse (342098641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146890243 - 2⁹ = 146889731 is a prime.

It is not a weakly prime, because it can be changed into another prime (146890043) 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 as a sum of consecutive naturals, namely, 73445121 + 73445122.

It is an arithmetic number, because the mean of its divisors is an integer number (73445122).

Almost surely, 2^146890243 is an apocalyptic number.

146890243 is a deficient number, since it is larger than the sum of its proper divisors (1).

146890243 is an equidigital number, since it uses as much as digits as its factorization.

146890243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 146890243 is about 12119.8285053874. The cubic root of 146890243 is about 527.6318252776.

The spelling of 146890243 in words is "one hundred forty-six million, eight hundred ninety thousand, two hundred forty-three".