2105450177 has 2 divisors, whose sum is σ = 2105450178. Its totient is φ = 2105450176.

The previous prime is 2105450147. The next prime is 2105450233. The reversal of 2105450177 is 7710545012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1795725376 + 309724801 = 42376^2 + 17599^2 .

It is a cyclic number.

It is not a de Polignac number, because 2105450177 - 2¹⁰ = 2105449153 is a prime.

It is not a weakly prime, because it can be changed into another prime (2105450147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052725088 + 1052725089.

It is an arithmetic number, because the mean of its divisors is an integer number (1052725089).

Almost surely, 2^2105450177 is an apocalyptic number.

It is an amenable number.

2105450177 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105450177 is an equidigital number, since it uses as much as digits as its factorization.

2105450177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 2105450177 is about 45885.1847223044. The cubic root of 2105450177 is about 1281.6860465567.

Adding to 2105450177 its reverse (7710545012), we get a palindrome (9815995189).

The spelling of 2105450177 in words is "two billion, one hundred five million, four hundred fifty thousand, one hundred seventy-seven".