145304903 has 2 divisors, whose sum is σ = 145304904. Its totient is φ = 145304902.

The previous prime is 145304849. The next prime is 145304909. The reversal of 145304903 is 309403541.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145304903 is a prime.

It is a super-2 number, since 2×145304903² = 42227029671678818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145304909) 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 as a sum of consecutive naturals, namely, 72652451 + 72652452.

It is an arithmetic number, because the mean of its divisors is an integer number (72652452).

Almost surely, 2^145304903 is an apocalyptic number.

145304903 is a deficient number, since it is larger than the sum of its proper divisors (1).

145304903 is an equidigital number, since it uses as much as digits as its factorization.

145304903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 145304903 is about 12054.2483382416. The cubic root of 145304903 is about 525.7267673055.

The spelling of 145304903 in words is "one hundred forty-five million, three hundred four thousand, nine hundred three".