71140797 has 36 divisors (see below), whose sum is σ = 128741340. Its totient is φ = 37521792.

The previous prime is 71140789. The next prime is 71140813. The reversal of 71140797 is 79704117.

It can be written as a sum of positive squares in 2 ways, for example, as 5433561 + 65707236 = 2331^2 + 8106^2 .

It is not a de Polignac number, because 71140797 - 2³ = 71140789 is a prime.

It is a super-2 number, since 2×71140797² = 10122025995590418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71140747) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 472 + ... + 11937.

Almost surely, 2^71140797 is an apocalyptic number.

It is an amenable number.

71140797 is a deficient number, since it is larger than the sum of its proper divisors (57600543).

71140797 is a wasteful number, since it uses less digits than its factorization.

71140797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12442 (or 12432 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 36.

The square root of 71140797 is about 8434.5004001423. The cubic root of 71140797 is about 414.3553100395.

The spelling of 71140797 in words is "seventy-one million, one hundred forty thousand, seven hundred ninety-seven".