71734261 has 2 divisors, whose sum is σ = 71734262. Its totient is φ = 71734260.

The previous prime is 71734259. The next prime is 71734283. The reversal of 71734261 is 16243717.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65707236 + 6027025 = 8106^2 + 2455^2 .

It is a cyclic number.

It is not a de Polignac number, because 71734261 - 2¹ = 71734259 is a prime.

It is a super-2 number, since 2×71734261² = 10291608402432242, which contains 22 as substring.

Together with 71734259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71732261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35867130 + 35867131.

It is an arithmetic number, because the mean of its divisors is an integer number (35867131).

Almost surely, 2^71734261 is an apocalyptic number.

It is an amenable number.

71734261 is a deficient number, since it is larger than the sum of its proper divisors (1).

71734261 is an equidigital number, since it uses as much as digits as its factorization.

71734261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 31.

The square root of 71734261 is about 8469.6080782997. The cubic root of 71734261 is about 415.5043193901.

Adding to 71734261 its reverse (16243717), we get a palindrome (87977978).

The spelling of 71734261 in words is "seventy-one million, seven hundred thirty-four thousand, two hundred sixty-one".