1205445041 has 4 divisors (see below), whose sum is σ = 1205920500. Its totient is φ = 1204969584.

The previous prime is 1205445023. The next prime is 1205445067. The reversal of 1205445041 is 1405445021.

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 1095279025 + 110166016 = 33095^2 + 10496^2 .

It is a cyclic number.

It is not a de Polignac number, because 1205445041 - 2¹⁰ = 1205444017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1205445041.

It is not an unprimeable number, because it can be changed into a prime (1205445541) 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, 233906 + ... + 239003.

It is an arithmetic number, because the mean of its divisors is an integer number (301480125).

Almost surely, 2^1205445041 is an apocalyptic number.

It is an amenable number.

1205445041 is a deficient number, since it is larger than the sum of its proper divisors (475459).

1205445041 is an equidigital number, since it uses as much as digits as its factorization.

1205445041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475458.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1205445041 is about 34719.5195963308. The cubic root of 1205445041 is about 1064.2634274467.

The spelling of 1205445041 in words is "one billion, two hundred five million, four hundred forty-five thousand, forty-one".