71162129 has 2 divisors, whose sum is σ = 71162130. Its totient is φ = 71162128.

The previous prime is 71162123. The next prime is 71162167. The reversal of 71162129 is 92126117.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42250000 + 28912129 = 6500^2 + 5377^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71162129 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71162123) 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, 35581064 + 35581065.

It is an arithmetic number, because the mean of its divisors is an integer number (35581065).

Almost surely, 2^71162129 is an apocalyptic number.

It is an amenable number.

71162129 is a deficient number, since it is larger than the sum of its proper divisors (1).

71162129 is an equidigital number, since it uses as much as digits as its factorization.

71162129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 29.

The square root of 71162129 is about 8435.7648734421. The cubic root of 71162129 is about 414.3967215526.

The spelling of 71162129 in words is "seventy-one million, one hundred sixty-two thousand, one hundred twenty-nine".