145111205 has 8 divisors (see below), whose sum is σ = 174247800. Its totient is φ = 116012736.

The previous prime is 145111171. The next prime is 145111223. The reversal of 145111205 is 502111541.

It can be written as a sum of positive squares in 4 ways, for example, as 22743361 + 122367844 = 4769^2 + 11062^2 .

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 145111205 - 2¹⁴ = 145094821 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350 + ... + 17039.

It is an arithmetic number, because the mean of its divisors is an integer number (21780975).

Almost surely, 2^145111205 is an apocalyptic number.

It is an amenable number.

145111205 is a deficient number, since it is larger than the sum of its proper divisors (29136595).

145111205 is a wasteful number, since it uses less digits than its factorization.

145111205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19063.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 145111205 is about 12046.2112300922. The cubic root of 145111205 is about 525.4930575825.

Adding to 145111205 its reverse (502111541), we get a palindrome (647222746).

The spelling of 145111205 in words is "one hundred forty-five million, one hundred eleven thousand, two hundred five".