145012503 has 8 divisors (see below), whose sum is σ = 203526400. Its totient is φ = 91586808.

The previous prime is 145012463. The next prime is 145012519. The reversal of 145012503 is 305210541.

145012503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145012503 - 2²⁰ = 143963927 is a prime.

It is an alternating number because its digits alternate between odd and even.

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 145012503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145012523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1271983 + ... + 1272096.

It is an arithmetic number, because the mean of its divisors is an integer number (25440800).

Almost surely, 2^145012503 is an apocalyptic number.

145012503 is a deficient number, since it is larger than the sum of its proper divisors (58513897).

145012503 is a wasteful number, since it uses less digits than its factorization.

145012503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544101.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 145012503 is about 12042.1137264186. The cubic root of 145012503 is about 525.3738869553.

The spelling of 145012503 in words is "one hundred forty-five million, twelve thousand, five hundred three".