2543137265 has 8 divisors (see below), whose sum is σ = 3053560680. Its totient is φ = 2033312512.

The previous prime is 2543137237. The next prime is 2543137279. The reversal of 2543137265 is 5627313452.

It can be written as a sum of positive squares in 4 ways, for example, as 523174129 + 2019963136 = 22873^2 + 44944^2 .

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 2543137265 - 2¹⁰ = 2543136241 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 140264 + ... + 157353.

It is an arithmetic number, because the mean of its divisors is an integer number (381695085).

Almost surely, 2^2543137265 is an apocalyptic number.

It is an amenable number.

2543137265 is a deficient number, since it is larger than the sum of its proper divisors (510423415).

2543137265 is a wasteful number, since it uses less digits than its factorization.

2543137265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299331.

The product of its digits is 151200, while the sum is 38.

The square root of 2543137265 is about 50429.5277094680. The cubic root of 2543137265 is about 1364.9705056980.

The spelling of 2543137265 in words is "two billion, five hundred forty-three million, one hundred thirty-seven thousand, two hundred sixty-five".