71325811 has 2 divisors, whose sum is σ = 71325812. Its totient is φ = 71325810.

The previous prime is 71325803. The next prime is 71325841. The reversal of 71325811 is 11852317.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71325811 - 2³ = 71325803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71325811.

It is not a weakly prime, because it can be changed into another prime (71325841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35662905 + 35662906.

It is an arithmetic number, because the mean of its divisors is an integer number (35662906).

Almost surely, 2^71325811 is an apocalyptic number.

71325811 is a deficient number, since it is larger than the sum of its proper divisors (1).

71325811 is an equidigital number, since it uses as much as digits as its factorization.

71325811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 28.

The square root of 71325811 is about 8445.4609702490. The cubic root of 71325811 is about 414.7142000866.

The spelling of 71325811 in words is "seventy-one million, three hundred twenty-five thousand, eight hundred eleven".