2772403121 has 2 divisors, whose sum is σ = 2772403122. Its totient is φ = 2772403120.

The previous prime is 2772403111. The next prime is 2772403159. The reversal of 2772403121 is 1213042772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1708664896 + 1063738225 = 41336^2 + 32615^2 .

It is a cyclic number.

It is not a de Polignac number, because 2772403121 - 2⁶ = 2772403057 is a prime.

It is not a weakly prime, because it can be changed into another prime (2772403111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1386201560 + 1386201561.

It is an arithmetic number, because the mean of its divisors is an integer number (1386201561).

Almost surely, 2^2772403121 is an apocalyptic number.

It is an amenable number.

2772403121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2772403121 is an equidigital number, since it uses as much as digits as its factorization.

2772403121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 2772403121 is about 52653.6145103069. The cubic root of 2772403121 is about 1404.8138912482.

Adding to 2772403121 its reverse (1213042772), we get a palindrome (3985445893).

The spelling of 2772403121 in words is "two billion, seven hundred seventy-two million, four hundred three thousand, one hundred twenty-one".