145305103 has 16 divisors (see below), whose sum is σ = 162540000. Its totient is φ = 129088512.

The previous prime is 145305101. The next prime is 145305119. The reversal of 145305103 is 301503541.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 145305103 - 2¹ = 145305101 is a prime.

It is a super-2 number, since 2×145305103² = 42227145915681218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145305101) 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 15 ways as a sum of consecutive naturals, for example, 112083 + ... + 113371.

It is an arithmetic number, because the mean of its divisors is an integer number (10158750).

Almost surely, 2^145305103 is an apocalyptic number.

145305103 is a deficient number, since it is larger than the sum of its proper divisors (17234897).

145305103 is a wasteful number, since it uses less digits than its factorization.

145305103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 145305103 is about 12054.2566340691. The cubic root of 145305103 is about 525.7270085117.

Adding to 145305103 its reverse (301503541), we get a palindrome (446808644).

The spelling of 145305103 in words is "one hundred forty-five million, three hundred five thousand, one hundred three".