71162461 has 2 divisors, whose sum is σ = 71162462. Its totient is φ = 71162460.

The previous prime is 71162449. The next prime is 71162471. The reversal of 71162461 is 16426117.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45091225 + 26071236 = 6715^2 + 5106^2 .

It is a cyclic number.

It is not a de Polignac number, because 71162461 - 2¹⁵ = 71129693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71162471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35581230 + 35581231.

It is an arithmetic number, because the mean of its divisors is an integer number (35581231).

Almost surely, 2^71162461 is an apocalyptic number.

It is an amenable number.

71162461 is a deficient number, since it is larger than the sum of its proper divisors (1).

71162461 is an equidigital number, since it uses as much as digits as its factorization.

71162461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 28.

The square root of 71162461 is about 8435.7845515399. The cubic root of 71162461 is about 414.3973659941.

Adding to 71162461 its reverse (16426117), we get a palindrome (87588578).

The spelling of 71162461 in words is "seventy-one million, one hundred sixty-two thousand, four hundred sixty-one".