2751481 has 2 divisors, whose sum is σ = 2751482. Its totient is φ = 2751480.

The previous prime is 2751479. The next prime is 2751493. The reversal of 2751481 is 1841572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1585081 + 1166400 = 1259^2 + 1080^2 .

It is a cyclic number.

It is not a de Polignac number, because 2751481 - 2¹ = 2751479 is a prime.

It is a super-2 number, since 2×2751481² = 15141295386722, which contains 22 as substring.

Together with 2751479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2751461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1375740 + 1375741.

It is an arithmetic number, because the mean of its divisors is an integer number (1375741).

2^2751481 is an apocalyptic number.

It is an amenable number.

2751481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2751481 is an equidigital number, since it uses as much as digits as its factorization.

2751481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2240, while the sum is 28.

The square root of 2751481 is about 1658.7588733749. The cubic root of 2751481 is about 140.1271124450.

Subtracting from 2751481 its reverse (1841572), we obtain a palindrome (909909).

It can be divided in two parts, 2751 and 481, that multiplied together give a palindrome (1323231).

The spelling of 2751481 in words is "two million, seven hundred fifty-one thousand, four hundred eighty-one".