145148203 has 4 divisors (see below), whose sum is σ = 145713240. Its totient is φ = 144583168.

The previous prime is 145148189. The next prime is 145148209. The reversal of 145148203 is 302841541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302841541 = 67 ⋅4520023.

It is a cyclic number.

It is not a de Polignac number, because 145148203 - 2²⁵ = 111593771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145148209) 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 in 3 ways as a sum of consecutive naturals, for example, 282133 + ... + 282646.

It is an arithmetic number, because the mean of its divisors is an integer number (36428310).

Almost surely, 2^145148203 is an apocalyptic number.

145148203 is a deficient number, since it is larger than the sum of its proper divisors (565037).

145148203 is an equidigital number, since it uses as much as digits as its factorization.

145148203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565036.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 145148203 is about 12047.7468017883. The cubic root of 145148203 is about 525.5377142306.

Adding to 145148203 its reverse (302841541), we get a palindrome (447989744).

The spelling of 145148203 in words is "one hundred forty-five million, one hundred forty-eight thousand, two hundred three".