2045647241 has 4 divisors (see below), whose sum is σ = 2231615184. Its totient is φ = 1859679300.

The previous prime is 2045647207. The next prime is 2045647271. The reversal of 2045647241 is 1427465402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2045647241 - 2¹⁴ = 2045630857 is a prime.

It is a super-2 number, since 2×2045647241² = 8369345269221824162, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2045647271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92983955 + ... + 92983976.

It is an arithmetic number, because the mean of its divisors is an integer number (557903796).

Almost surely, 2^2045647241 is an apocalyptic number.

It is an amenable number.

2045647241 is a deficient number, since it is larger than the sum of its proper divisors (185967943).

2045647241 is a wasteful number, since it uses less digits than its factorization.

2045647241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185967942.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 2045647241 is about 45228.8319659042. The cubic root of 2045647241 is about 1269.4343567824.

The spelling of 2045647241 in words is "two billion, forty-five million, six hundred forty-seven thousand, two hundred forty-one".