145730303 has 2 divisors, whose sum is σ = 145730304. Its totient is φ = 145730302.

The previous prime is 145730261. The next prime is 145730357. The reversal of 145730303 is 303037541.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145730303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145730003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72865151 + 72865152.

It is an arithmetic number, because the mean of its divisors is an integer number (72865152).

Almost surely, 2^145730303 is an apocalyptic number.

145730303 is a deficient number, since it is larger than the sum of its proper divisors (1).

145730303 is an equidigital number, since it uses as much as digits as its factorization.

145730303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 145730303 is about 12071.8806736979. The cubic root of 145730303 is about 526.2393131473.

Adding to 145730303 its reverse (303037541), we get a palindrome (448767844).

The spelling of 145730303 in words is "one hundred forty-five million, seven hundred thirty thousand, three hundred three".