2775150121 has 2 divisors, whose sum is σ = 2775150122. Its totient is φ = 2775150120.

The previous prime is 2775150097. The next prime is 2775150199. The reversal of 2775150121 is 1210515772.

2775150121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1594884096 + 1180266025 = 39936^2 + 34355^2 .

It is a cyclic number.

It is not a de Polignac number, because 2775150121 - 2¹⁵ = 2775117353 is a prime.

It is not a weakly prime, because it can be changed into another prime (2775150421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1387575060 + 1387575061.

It is an arithmetic number, because the mean of its divisors is an integer number (1387575061).

Almost surely, 2^2775150121 is an apocalyptic number.

It is an amenable number.

2775150121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2775150121 is an equidigital number, since it uses as much as digits as its factorization.

2775150121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4900, while the sum is 31.

The square root of 2775150121 is about 52679.6936304683. The cubic root of 2775150121 is about 1405.2777186857.

Adding to 2775150121 its reverse (1210515772), we get a palindrome (3985665893).

The spelling of 2775150121 in words is "two billion, seven hundred seventy-five million, one hundred fifty thousand, one hundred twenty-one".