71138606 has 32 divisors (see below), whose sum is σ = 133436160. Its totient is φ = 27633600.

The previous prime is 71138581. The next prime is 71138623. The reversal of 71138606 is 60683117.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87530 + ... + 88338.

It is an arithmetic number, because the mean of its divisors is an integer number (4169880).

Almost surely, 2^71138606 is an apocalyptic number.

71138606 is a deficient number, since it is larger than the sum of its proper divisors (62297554).

71138606 is a wasteful number, since it uses less digits than its factorization.

71138606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 71138606 is about 8434.3705159306. The cubic root of 71138606 is about 414.3510562131.

The spelling of 71138606 in words is "seventy-one million, one hundred thirty-eight thousand, six hundred six".