145042205 has 24 divisors (see below), whose sum is σ = 220877280. Its totient is φ = 90414240.

The previous prime is 145042199. The next prime is 145042229. The reversal of 145042205 is 502240541.

It is a happy number.

It is not a de Polignac number, because 145042205 - 2⁴ = 145042189 is a prime.

It is a Curzon 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 23 ways as a sum of consecutive naturals, for example, 24215 + ... + 29604.

It is an arithmetic number, because the mean of its divisors is an integer number (9203220).

Almost surely, 2^145042205 is an apocalyptic number.

It is an amenable number.

145042205 is a deficient number, since it is larger than the sum of its proper divisors (75835075).

145042205 is a wasteful number, since it uses less digits than its factorization.

145042205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53849 (or 53842 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 145042205 is about 12043.3469185273. The cubic root of 145042205 is about 525.4097541842.

Adding to 145042205 its reverse (502240541), we get a palindrome (647282746).

The spelling of 145042205 in words is "one hundred forty-five million, forty-two thousand, two hundred five".