71122385 has 4 divisors (see below), whose sum is σ = 85346868. Its totient is φ = 56897904.

The previous prime is 71122379. The next prime is 71122393. The reversal of 71122385 is 58322117.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44568976 + 26553409 = 6676^2 + 5153^2 .

It is a cyclic number.

It is not a de Polignac number, because 71122385 - 2⁴ = 71122369 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7112234 + ... + 7112243.

It is an arithmetic number, because the mean of its divisors is an integer number (21336717).

Almost surely, 2^71122385 is an apocalyptic number.

It is an amenable number.

71122385 is a deficient number, since it is larger than the sum of its proper divisors (14224483).

71122385 is a wasteful number, since it uses less digits than its factorization.

71122385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14224482.

The product of its digits is 3360, while the sum is 29.

The square root of 71122385 is about 8433.4088600044. The cubic root of 71122385 is about 414.3195604249.

The spelling of 71122385 in words is "seventy-one million, one hundred twenty-two thousand, three hundred eighty-five".