2731061 has 2 divisors, whose sum is σ = 2731062. Its totient is φ = 2731060.

The previous prime is 2731049. The next prime is 2731063. The reversal of 2731061 is 1601372.

It is a happy number.

2731061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1562500 + 1168561 = 1250^2 + 1081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2731061 is a prime.

Together with 2731063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2731063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365530 + 1365531.

It is an arithmetic number, because the mean of its divisors is an integer number (1365531).

2^2731061 is an apocalyptic number.

It is an amenable number.

2731061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2731061 is an equidigital number, since it uses as much as digits as its factorization.

2731061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 2731061 is about 1652.5922062021. The cubic root of 2731061 is about 139.7796021960.

The spelling of 2731061 in words is "two million, seven hundred thirty-one thousand, sixty-one".