71151023 has 2 divisors, whose sum is σ = 71151024. Its totient is φ = 71151022.

The previous prime is 71151013. The next prime is 71151079. The reversal of 71151023 is 32015117.

It is a weak prime.

It is an emirp because it is prime and its reverse (32015117) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71151023 - 2¹⁰ = 71149999 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 71150986 and 71151004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71151013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35575511 + 35575512.

It is an arithmetic number, because the mean of its divisors is an integer number (35575512).

Almost surely, 2^71151023 is an apocalyptic number.

71151023 is a deficient number, since it is larger than the sum of its proper divisors (1).

71151023 is an equidigital number, since it uses as much as digits as its factorization.

71151023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 71151023 is about 8435.1065790540. The cubic root of 71151023 is about 414.3751626631.

The spelling of 71151023 in words is "seventy-one million, one hundred fifty-one thousand, twenty-three".