2731049 has 2 divisors, whose sum is σ = 2731050. Its totient is φ = 2731048.

The previous prime is 2731013. The next prime is 2731061. The reversal of 2731049 is 9401372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1392400 + 1338649 = 1180^2 + 1157^2 .

It is a cyclic number.

It is not a de Polignac number, because 2731049 - 2¹⁶ = 2665513 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2731349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365524 + 1365525.

It is an arithmetic number, because the mean of its divisors is an integer number (1365525).

2^2731049 is an apocalyptic number.

It is an amenable number.

2731049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2731049 is an equidigital number, since it uses as much as digits as its factorization.

2731049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 2731049 is about 1652.5885755384. The cubic root of 2731049 is about 139.7793974700.

The spelling of 2731049 in words is "two million, seven hundred thirty-one thousand, forty-nine".