71025223 has 2 divisors, whose sum is σ = 71025224. Its totient is φ = 71025222.

The previous prime is 71025221. The next prime is 71025271. The reversal of 71025223 is 32252017.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71025223 - 2¹ = 71025221 is a prime.

Together with 71025221, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 71025194 and 71025203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71025221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35512611 + 35512612.

It is an arithmetic number, because the mean of its divisors is an integer number (35512612).

Almost surely, 2^71025223 is an apocalyptic number.

71025223 is a deficient number, since it is larger than the sum of its proper divisors (1).

71025223 is an equidigital number, since it uses as much as digits as its factorization.

71025223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 71025223 is about 8427.6463499603. The cubic root of 71025223 is about 414.1308038064.

The spelling of 71025223 in words is "seventy-one million, twenty-five thousand, two hundred twenty-three".