145603303 has 2 divisors, whose sum is σ = 145603304. Its totient is φ = 145603302.

The previous prime is 145603301. The next prime is 145603307. The reversal of 145603303 is 303306541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145603303 - 2¹ = 145603301 is a prime.

Together with 145603301, it forms a pair of twin primes.

It is equal to p_8210617 and since 145603303 and 8210617 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145603301) 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 as a sum of consecutive naturals, namely, 72801651 + 72801652.

It is an arithmetic number, because the mean of its divisors is an integer number (72801652).

Almost surely, 2^145603303 is an apocalyptic number.

145603303 is a deficient number, since it is larger than the sum of its proper divisors (1).

145603303 is an equidigital number, since it uses as much as digits as its factorization.

145603303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 145603303 is about 12066.6193691522. The cubic root of 145603303 is about 526.0864009640.

Adding to 145603303 its reverse (303306541), we get a palindrome (448909844).

The spelling of 145603303 in words is "one hundred forty-five million, six hundred three thousand, three hundred three".