145181003 has 24 divisors (see below), whose sum is σ = 170395344. Its totient is φ = 123171840.

The previous prime is 145180961. The next prime is 145181009. The reversal of 145181003 is 300181541.

It is a de Polignac number, because none of the positive numbers 2^k-145181003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145181003.

It is not an unprimeable number, because it can be changed into a prime (145181009) 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 23 ways as a sum of consecutive naturals, for example, 335075 + ... + 335507.

It is an arithmetic number, because the mean of its divisors is an integer number (7099806).

Almost surely, 2^145181003 is an apocalyptic number.

145181003 is a deficient number, since it is larger than the sum of its proper divisors (25214341).

145181003 is a wasteful number, since it uses less digits than its factorization.

145181003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 145181003 is about 12049.1079752818. The cubic root of 145181003 is about 525.5772975401.

The spelling of 145181003 in words is "one hundred forty-five million, one hundred eighty-one thousand, three".