2681549147 has 2 divisors, whose sum is σ = 2681549148. Its totient is φ = 2681549146.

The previous prime is 2681549131. The next prime is 2681549161. The reversal of 2681549147 is 7419451862.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2681549147 - 2⁴ = 2681549131 is a prime.

It is not a weakly prime, because it can be changed into another prime (2681549747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340774573 + 1340774574.

It is an arithmetic number, because the mean of its divisors is an integer number (1340774574).

Almost surely, 2^2681549147 is an apocalyptic number.

2681549147 is a deficient number, since it is larger than the sum of its proper divisors (1).

2681549147 is an equidigital number, since it uses as much as digits as its factorization.

2681549147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 47.

The square root of 2681549147 is about 51783.6764531063. The cubic root of 2681549147 is about 1389.2974983033.

The spelling of 2681549147 in words is "two billion, six hundred eighty-one million, five hundred forty-nine thousand, one hundred forty-seven".