145132205 has 8 divisors (see below), whose sum is σ = 174907512. Its totient is φ = 115606528.

The previous prime is 145132199. The next prime is 145132217. The reversal of 145132205 is 502231541.

It can be written as a sum of positive squares in 4 ways, for example, as 15217801 + 129914404 = 3901^2 + 11398^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 145132205 - 2⁴ = 145132189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 61124 + ... + 63453.

It is an arithmetic number, because the mean of its divisors is an integer number (21863439).

Almost surely, 2^145132205 is an apocalyptic number.

It is an amenable number.

145132205 is a deficient number, since it is larger than the sum of its proper divisors (29775307).

145132205 is a wasteful number, since it uses less digits than its factorization.

145132205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124815.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 145132205 is about 12047.0828419165. The cubic root of 145132205 is about 525.5184055491.

Adding to 145132205 its reverse (502231541), we get a palindrome (647363746).

The spelling of 145132205 in words is "one hundred forty-five million, one hundred thirty-two thousand, two hundred five".