71388122 has 8 divisors (see below), whose sum is σ = 115319316. Its totient is φ = 32948352.

The previous prime is 71388103. The next prime is 71388173. The reversal of 71388122 is 22188317.

It can be written as a sum of positive squares in 2 ways, for example, as 71250481 + 137641 = 8441^2 + 371^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1372823 + ... + 1372874.

Almost surely, 2^71388122 is an apocalyptic number.

71388122 is a deficient number, since it is larger than the sum of its proper divisors (43931194).

71388122 is a wasteful number, since it uses less digits than its factorization.

71388122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745712.

The product of its digits is 5376, while the sum is 32.

The square root of 71388122 is about 8449.1491879360. The cubic root of 71388122 is about 414.8349312065.

The spelling of 71388122 in words is "seventy-one million, three hundred eighty-eight thousand, one hundred twenty-two".