2752140221 has 2 divisors, whose sum is σ = 2752140222. Its totient is φ = 2752140220.

The previous prime is 2752140113. The next prime is 2752140239. The reversal of 2752140221 is 1220412572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2640520996 + 111619225 = 51386^2 + 10565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2752140221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2752142221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1376070110 + 1376070111.

It is an arithmetic number, because the mean of its divisors is an integer number (1376070111).

Almost surely, 2^2752140221 is an apocalyptic number.

It is an amenable number.

2752140221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2752140221 is an equidigital number, since it uses as much as digits as its factorization.

2752140221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 2752140221 is about 52460.8446462693. The cubic root of 2752140221 is about 1401.3830246216.

Adding to 2752140221 its reverse (1220412572), we get a palindrome (3972552793).

The spelling of 2752140221 in words is "two billion, seven hundred fifty-two million, one hundred forty thousand, two hundred twenty-one".