145025203 has 4 divisors (see below), whose sum is σ = 145137808. Its totient is φ = 144912600.

The previous prime is 145025183. The next prime is 145025207. The reversal of 145025203 is 302520541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145025203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145025207) 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 3 ways as a sum of consecutive naturals, for example, 54348 + ... + 56953.

It is an arithmetic number, because the mean of its divisors is an integer number (36284452).

Almost surely, 2^145025203 is an apocalyptic number.

145025203 is a deficient number, since it is larger than the sum of its proper divisors (112605).

145025203 is a wasteful number, since it uses less digits than its factorization.

145025203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112604.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 145025203 is about 12042.6410309367. The cubic root of 145025203 is about 525.3892236871.

Adding to 145025203 its reverse (302520541), we get a palindrome (447545744).

The spelling of 145025203 in words is "one hundred forty-five million, twenty-five thousand, two hundred three".