146406243 has 4 divisors (see below), whose sum is σ = 195208328. Its totient is φ = 97604160.

The previous prime is 146406241. The next prime is 146406251. The reversal of 146406243 is 342604641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342604641 = 3 ⋅114201547.

It is not a de Polignac number, because 146406243 - 2¹ = 146406241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146406243.

It is not an unprimeable number, because it can be changed into a prime (146406241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24401038 + ... + 24401043.

It is an arithmetic number, because the mean of its divisors is an integer number (48802082).

Almost surely, 2^146406243 is an apocalyptic number.

146406243 is a deficient number, since it is larger than the sum of its proper divisors (48802085).

146406243 is an equidigital number, since it uses as much as digits as its factorization.

146406243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48802084.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 146406243 is about 12099.8447510702. The cubic root of 146406243 is about 527.0516760078.

The spelling of 146406243 in words is "one hundred forty-six million, four hundred six thousand, two hundred forty-three".