2100054247 has 2 divisors, whose sum is σ = 2100054248. Its totient is φ = 2100054246.

The previous prime is 2100054193. The next prime is 2100054293. The reversal of 2100054247 is 7424500012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100054247 - 2⁷ = 2100054119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100054647) 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, 1050027123 + 1050027124.

It is an arithmetic number, because the mean of its divisors is an integer number (1050027124).

Almost surely, 2^2100054247 is an apocalyptic number.

2100054247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100054247 is an equidigital number, since it uses as much as digits as its factorization.

2100054247 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 25.

The square root of 2100054247 is about 45826.3488290307. The cubic root of 2100054247 is about 1280.5901914922.

Adding to 2100054247 its reverse (7424500012), we get a palindrome (9524554259).

The spelling of 2100054247 in words is "two billion, one hundred million, fifty-four thousand, two hundred forty-seven".