2731481461 has 2 divisors, whose sum is σ = 2731481462. Its totient is φ = 2731481460.

The previous prime is 2731481453. The next prime is 2731481479. The reversal of 2731481461 is 1641841372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1783457361 + 948024100 = 42231^2 + 30790^2 .

It is a cyclic number.

It is not a de Polignac number, because 2731481461 - 2³ = 2731481453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2731481461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2731481161) 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 as a sum of consecutive naturals, namely, 1365740730 + 1365740731.

It is an arithmetic number, because the mean of its divisors is an integer number (1365740731).

Almost surely, 2^2731481461 is an apocalyptic number.

It is an amenable number.

2731481461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2731481461 is an equidigital number, since it uses as much as digits as its factorization.

2731481461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 37.

The square root of 2731481461 is about 52263.5768102414. The cubic root of 2731481461 is about 1397.8677509273.

The spelling of 2731481461 in words is "two billion, seven hundred thirty-one million, four hundred eighty-one thousand, four hundred sixty-one".