71156073 has 16 divisors (see below), whose sum is σ = 98493696. Its totient is φ = 45661440.

The previous prime is 71156021. The next prime is 71156087. The reversal of 71156073 is 37065117.

It is not a de Polignac number, because 71156073 - 2⁶ = 71156009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71156073.

It is not an unprimeable number, because it can be changed into a prime (71156473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4465 + ... + 12737.

It is an arithmetic number, because the mean of its divisors is an integer number (6155856).

Almost surely, 2^71156073 is an apocalyptic number.

It is an amenable number.

71156073 is a deficient number, since it is larger than the sum of its proper divisors (27337623).

71156073 is a wasteful number, since it uses less digits than its factorization.

71156073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8384.

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 71156073 is about 8435.4059179153. The cubic root of 71156073 is about 414.3849659658.

The spelling of 71156073 in words is "seventy-one million, one hundred fifty-six thousand, seventy-three".