71061097 has 2 divisors, whose sum is σ = 71061098. Its totient is φ = 71061096.

The previous prime is 71061091. The next prime is 71061101. The reversal of 71061097 is 79016017.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69956496 + 1104601 = 8364^2 + 1051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71061097 is a prime.

It is equal to p_4176733 and since 71061097 and 4176733 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (71061091) 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, 35530548 + 35530549.

It is an arithmetic number, because the mean of its divisors is an integer number (35530549).

Almost surely, 2^71061097 is an apocalyptic number.

It is an amenable number.

71061097 is a deficient number, since it is larger than the sum of its proper divisors (1).

71061097 is an equidigital number, since it uses as much as digits as its factorization.

71061097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 31.

The square root of 71061097 is about 8429.7744335184. The cubic root of 71061097 is about 414.2005162608.

The spelling of 71061097 in words is "seventy-one million, sixty-one thousand, ninety-seven".