2755121 has 2 divisors, whose sum is σ = 2755122. Its totient is φ = 2755120.

The previous prime is 2755117. The next prime is 2755127. The reversal of 2755121 is 1215572.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1784896 + 970225 = 1336^2 + 985^2 .

It is a cyclic number.

It is not a de Polignac number, because 2755121 - 2² = 2755117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2755127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1377560 + 1377561.

It is an arithmetic number, because the mean of its divisors is an integer number (1377561).

2^2755121 is an apocalyptic number.

It is an amenable number.

2755121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2755121 is an equidigital number, since it uses as much as digits as its factorization.

2755121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 700, while the sum is 23.

The square root of 2755121 is about 1659.8557166212. The cubic root of 2755121 is about 140.1888777185.

It can be divided in two parts, 27551 and 21, that added together give a palindrome (27572).

The spelling of 2755121 in words is "two million, seven hundred fifty-five thousand, one hundred twenty-one".