202147871 has 2 divisors, whose sum is σ = 202147872. Its totient is φ = 202147870.

The previous prime is 202147831. The next prime is 202147879. The reversal of 202147871 is 178741202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202147871 - 2¹⁴ = 202131487 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202147879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101073935 + 101073936.

It is an arithmetic number, because the mean of its divisors is an integer number (101073936).

Almost surely, 2^202147871 is an apocalyptic number.

202147871 is a deficient number, since it is larger than the sum of its proper divisors (1).

202147871 is an equidigital number, since it uses as much as digits as its factorization.

202147871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 202147871 is about 14217.8715355007. The cubic root of 202147871 is about 586.8895688293.

The spelling of 202147871 in words is "two hundred two million, one hundred forty-seven thousand, eight hundred seventy-one".