2273081057 has 8 divisors (see below), whose sum is σ = 2449988520. Its totient is φ = 2096467200.

The previous prime is 2273081047. The next prime is 2273081059. The reversal of 2273081057 is 7501803722.

It can be written as a sum of positive squares in 4 ways, for example, as 464790481 + 1808290576 = 21559^2 + 42524^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2273081057 - 2²⁰ = 2272032481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2273081059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57182 + ... + 88407.

It is an arithmetic number, because the mean of its divisors is an integer number (306248565).

Almost surely, 2^2273081057 is an apocalyptic number.

It is an amenable number.

2273081057 is a deficient number, since it is larger than the sum of its proper divisors (176907463).

2273081057 is a wasteful number, since it uses less digits than its factorization.

2273081057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146803.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 2273081057 is about 47676.8398386470. The cubic root of 2273081057 is about 1314.8361647776.

Adding to 2273081057 its reverse (7501803722), we get a palindrome (9774884779).

The spelling of 2273081057 in words is "two billion, two hundred seventy-three million, eighty-one thousand, fifty-seven".