145203028 has 6 divisors (see below), whose sum is σ = 254105306. Its totient is φ = 72601512.

The previous prime is 145203011. The next prime is 145203031. The reversal of 145203028 is 820302541.

It can be written as a sum of positive squares in only one way, i.e., 94906564 + 50296464 = 9742^2 + 7092^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145202993 and 145203011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18150375 + ... + 18150382.

Almost surely, 2^145203028 is an apocalyptic number.

It is an amenable number.

145203028 is a deficient number, since it is larger than the sum of its proper divisors (108902278).

145203028 is a wasteful number, since it uses less digits than its factorization.

145203028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36300761 (or 36300759 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 145203028 is about 12050.0219086938. The cubic root of 145203028 is about 525.6038741454.

Adding to 145203028 its reverse (820302541), we get a palindrome (965505569).

The spelling of 145203028 in words is "one hundred forty-five million, two hundred three thousand, twenty-eight".