145000145 has 16 divisors (see below), whose sum is σ = 181800720. Its totient is φ = 110880000.

The previous prime is 145000117. The next prime is 145000169. The reversal of 145000145 is 541000541.

It can be written as a sum of positive squares in 8 ways, for example, as 36590401 + 108409744 = 6049^2 + 10412^2 .

It is not a de Polignac number, because 145000145 - 2⁶ = 145000081 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9695 + ... + 19595.

It is an arithmetic number, because the mean of its divisors is an integer number (11362545).

Almost surely, 2^145000145 is an apocalyptic number.

It is an amenable number.

145000145 is a deficient number, since it is larger than the sum of its proper divisors (36800575).

145000145 is a wasteful number, since it uses less digits than its factorization.

145000145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10036.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 145000145 is about 12041.6005995881. The cubic root of 145000145 is about 525.3589623688.

Adding to 145000145 its reverse (541000541), we get a palindrome (686000686).

The spelling of 145000145 in words is "one hundred forty-five million, one hundred forty-five", and thus it is an aban number.