2731754981 has 4 divisors (see below), whose sum is σ = 2732350764. Its totient is φ = 2731159200.

The previous prime is 2731754953. The next prime is 2731755083. The reversal of 2731754981 is 1894571372.

2731754981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1335537025 + 1396217956 = 36545^2 + 37366^2 .

It is a cyclic number.

It is not a de Polignac number, because 2731754981 - 2⁶ = 2731754917 is a prime.

It is a super-2 number, since 2×2731754981² = 14924970552436620722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2731754951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290960 + ... + 300201.

It is an arithmetic number, because the mean of its divisors is an integer number (683087691).

Almost surely, 2^2731754981 is an apocalyptic number.

It is an amenable number.

2731754981 is a deficient number, since it is larger than the sum of its proper divisors (595783).

2731754981 is an equidigital number, since it uses as much as digits as its factorization.

2731754981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595782.

The product of its digits is 423360, while the sum is 47.

The square root of 2731754981 is about 52266.1934810638. The cubic root of 2731754981 is about 1397.9144083952.

The spelling of 2731754981 in words is "two billion, seven hundred thirty-one million, seven hundred fifty-four thousand, nine hundred eighty-one".