202742471 has 2 divisors, whose sum is σ = 202742472. Its totient is φ = 202742470.

The previous prime is 202742431. The next prime is 202742473. The reversal of 202742471 is 174247202.

202742471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202742471 is a prime.

It is a super-3 number, since 3×202742471³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 202742473, 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 (202742473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101371235 + 101371236.

It is an arithmetic number, because the mean of its divisors is an integer number (101371236).

Almost surely, 2^202742471 is an apocalyptic number.

202742471 is a deficient number, since it is larger than the sum of its proper divisors (1).

202742471 is an equidigital number, since it uses as much as digits as its factorization.

202742471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 202742471 is about 14238.7664844958. The cubic root of 202742471 is about 587.4644333984.

Adding to 202742471 its reverse (174247202), we get a palindrome (376989673).

The spelling of 202742471 in words is "two hundred two million, seven hundred forty-two thousand, four hundred seventy-one".