2731013 has 2 divisors, whose sum is σ = 2731014. Its totient is φ = 2731012.

The previous prime is 2730991. The next prime is 2731049. The reversal of 2731013 is 3101372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1481089 + 1249924 = 1217^2 + 1118^2 .

It is a cyclic number.

It is not a de Polignac number, because 2731013 - 2¹² = 2726917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2730982 and 2731000.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 1365506 + 1365507.

It is an arithmetic number, because the mean of its divisors is an integer number (1365507).

2^2731013 is an apocalyptic number.

It is an amenable number.

2731013 is a deficient number, since it is larger than the sum of its proper divisors (1).

2731013 is an equidigital number, since it uses as much as digits as its factorization.

2731013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 2731013 is about 1652.5776834993. The cubic root of 2731013 is about 139.7787832884.

Adding to 2731013 its reverse (3101372), we get a palindrome (5832385).

The spelling of 2731013 in words is "two million, seven hundred thirty-one thousand, thirteen".