145565113 has 4 divisors (see below), whose sum is σ = 145610020. Its totient is φ = 145520208.

The previous prime is 145565089. The next prime is 145565143. The reversal of 145565113 is 311565541.

It is a happy number.

145565113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311565541 = 7 ⋅44509363.

It can be written as a sum of positive squares in 2 ways, for example, as 124478649 + 21086464 = 11157^2 + 4592^2 .

It is a cyclic number.

It is not a de Polignac number, because 145565113 - 2⁵ = 145565081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145565143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17178 + ... + 24211.

It is an arithmetic number, because the mean of its divisors is an integer number (36402505).

Almost surely, 2^145565113 is an apocalyptic number.

It is an amenable number.

145565113 is a deficient number, since it is larger than the sum of its proper divisors (44907).

145565113 is an equidigital number, since it uses as much as digits as its factorization.

145565113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44906.

The product of its digits is 9000, while the sum is 31.

The square root of 145565113 is about 12065.0368006070. The cubic root of 145565113 is about 526.0404015578.

The spelling of 145565113 in words is "one hundred forty-five million, five hundred sixty-five thousand, one hundred thirteen".