202047071 has 2 divisors, whose sum is σ = 202047072. Its totient is φ = 202047070.

The previous prime is 202047061. The next prime is 202047073. The reversal of 202047071 is 170740202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202047071 - 2¹⁸ = 201784927 is a prime.

Together with 202047073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202047073) 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, 101023535 + 101023536.

It is an arithmetic number, because the mean of its divisors is an integer number (101023536).

Almost surely, 2^202047071 is an apocalyptic number.

202047071 is a deficient number, since it is larger than the sum of its proper divisors (1).

202047071 is an equidigital number, since it uses as much as digits as its factorization.

202047071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 202047071 is about 14214.3262590951. The cubic root of 202047071 is about 586.7920027853.

Adding to 202047071 its reverse (170740202), we get a palindrome (372787273).

The spelling of 202047071 in words is "two hundred two million, forty-seven thousand, seventy-one".