145564205 has 4 divisors (see below), whose sum is σ = 174677052. Its totient is φ = 116451360.

The previous prime is 145564193. The next prime is 145564229. The reversal of 145564205 is 502465541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49308484 + 96255721 = 7022^2 + 9811^2 .

It is not a de Polignac number, because 145564205 - 2⁶ = 145564141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14556416 + ... + 14556425.

It is an arithmetic number, because the mean of its divisors is an integer number (43669263).

Almost surely, 2^145564205 is an apocalyptic number.

It is an amenable number.

145564205 is a deficient number, since it is larger than the sum of its proper divisors (29112847).

145564205 is an equidigital number, since it uses as much as digits as its factorization.

145564205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29112846.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 145564205 is about 12064.9991711562. Note that the first 3 decimals coincide. The cubic root of 145564205 is about 526.0393077845.

The spelling of 145564205 in words is "one hundred forty-five million, five hundred sixty-four thousand, two hundred five".