146226203 has 4 divisors (see below), whose sum is σ = 152583888. Its totient is φ = 139868520.

The previous prime is 146226173. The next prime is 146226209. The reversal of 146226203 is 302622641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302622641 = 4463 ⋅67807.

It is a de Polignac number, because none of the positive numbers 2^k-146226203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146226209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3178808 + ... + 3178853.

It is an arithmetic number, because the mean of its divisors is an integer number (38145972).

Almost surely, 2^146226203 is an apocalyptic number.

146226203 is a deficient number, since it is larger than the sum of its proper divisors (6357685).

146226203 is an equidigital number, since it uses as much as digits as its factorization.

146226203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6357684.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 146226203 is about 12092.4026975618. The cubic root of 146226203 is about 526.8355438155.

Adding to 146226203 its reverse (302622641), we get a palindrome (448848844).

The spelling of 146226203 in words is "one hundred forty-six million, two hundred twenty-six thousand, two hundred three".