145103503 has 2 divisors, whose sum is σ = 145103504. Its totient is φ = 145103502.

The previous prime is 145103473. The next prime is 145103509. The reversal of 145103503 is 305301541.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145103503 - 2²⁵ = 111549071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145103509) 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, 72551751 + 72551752.

It is an arithmetic number, because the mean of its divisors is an integer number (72551752).

Almost surely, 2^145103503 is an apocalyptic number.

145103503 is a deficient number, since it is larger than the sum of its proper divisors (1).

145103503 is an equidigital number, since it uses as much as digits as its factorization.

145103503 is an odious number, because the sum of its binary digits is odd.

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

The square root of 145103503 is about 12045.8915402721. The cubic root of 145103503 is about 525.4837603011.

The spelling of 145103503 in words is "one hundred forty-five million, one hundred three thousand, five hundred three".