145205041 has 4 divisors (see below), whose sum is σ = 153746532. Its totient is φ = 136663552.

The previous prime is 145205033. The next prime is 145205063. The reversal of 145205041 is 140502541.

145205041 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.

It can be written as a sum of positive squares in 2 ways, for example, as 89851441 + 55353600 = 9479^2 + 7440^2 .

It is a cyclic number.

It is not a de Polignac number, because 145205041 - 2³ = 145205033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145205441) 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, 4270720 + ... + 4270753.

It is an arithmetic number, because the mean of its divisors is an integer number (38436633).

Almost surely, 2^145205041 is an apocalyptic number.

It is an amenable number.

145205041 is a deficient number, since it is larger than the sum of its proper divisors (8541491).

145205041 is an equidigital number, since it uses as much as digits as its factorization.

145205041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8541490.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 145205041 is about 12050.1054352234. The cubic root of 145205041 is about 525.6063030106.

Adding to 145205041 its reverse (140502541), we get a palindrome (285707582).

The spelling of 145205041 in words is "one hundred forty-five million, two hundred five thousand, forty-one".