2101952147 has 2 divisors, whose sum is σ = 2101952148. Its totient is φ = 2101952146.

The previous prime is 2101952143. The next prime is 2101952173. The reversal of 2101952147 is 7412591012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2101952147 - 2² = 2101952143 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101952141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050976073 + 1050976074.

It is an arithmetic number, because the mean of its divisors is an integer number (1050976074).

Almost surely, 2^2101952147 is an apocalyptic number.

2101952147 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101952147 is an equidigital number, since it uses as much as digits as its factorization.

2101952147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 2101952147 is about 45847.0516718360. The cubic root of 2101952147 is about 1280.9758482496.

The spelling of 2101952147 in words is "two billion, one hundred one million, nine hundred fifty-two thousand, one hundred forty-seven".