145540303 has 2 divisors, whose sum is σ = 145540304. Its totient is φ = 145540302.

The previous prime is 145540301. The next prime is 145540309. The reversal of 145540303 is 303045541.

145540303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (303045541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145540303 - 2¹ = 145540301 is a prime.

Together with 145540301, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145540301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72770151 + 72770152.

It is an arithmetic number, because the mean of its divisors is an integer number (72770152).

Almost surely, 2^145540303 is an apocalyptic number.

145540303 is a deficient number, since it is larger than the sum of its proper divisors (1).

145540303 is an equidigital number, since it uses as much as digits as its factorization.

145540303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 145540303 is about 12064.0085792410. The cubic root of 145540303 is about 526.0105138930.

Adding to 145540303 its reverse (303045541), we get a palindrome (448585844).

The spelling of 145540303 in words is "one hundred forty-five million, five hundred forty thousand, three hundred three".