71874031 has 2 divisors, whose sum is σ = 71874032. Its totient is φ = 71874030.

The previous prime is 71874013. The next prime is 71874059. The reversal of 71874031 is 13047817.

Together with previous prime (71874013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (13047817) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71874031 - 2¹¹ = 71871983 is a prime.

It is a super-2 number, since 2×71874031² = 10331752664377922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71873984 and 71874002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71874001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35937015 + 35937016.

It is an arithmetic number, because the mean of its divisors is an integer number (35937016).

Almost surely, 2^71874031 is an apocalyptic number.

71874031 is a deficient number, since it is larger than the sum of its proper divisors (1).

71874031 is an equidigital number, since it uses as much as digits as its factorization.

71874031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 71874031 is about 8477.8553302118. The cubic root of 71874031 is about 415.7740062412.

The spelling of 71874031 in words is "seventy-one million, eight hundred seventy-four thousand, thirty-one".