71122065 has 32 divisors (see below), whose sum is σ = 134542080. Its totient is φ = 31390464.

The previous prime is 71122027. The next prime is 71122147. The reversal of 71122065 is 56022117.

71122065 = 488² + 489² + ... + 690².

It is not a de Polignac number, because 71122065 - 2⁶ = 71122001 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 8634 + ... + 14723.

It is an arithmetic number, because the mean of its divisors is an integer number (4204440).

Almost surely, 2^71122065 is an apocalyptic number.

It is an amenable number.

71122065 is a deficient number, since it is larger than the sum of its proper divisors (63420015).

71122065 is a wasteful number, since it uses less digits than its factorization.

71122065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23401.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 71122065 is about 8433.3898878209. The cubic root of 71122065 is about 414.3189390431.

The spelling of 71122065 in words is "seventy-one million, one hundred twenty-two thousand, sixty-five".