71135406 has 12 divisors (see below), whose sum is σ = 154126752. Its totient is φ = 23711796.

The previous prime is 71135357. The next prime is 71135413. The reversal of 71135406 is 60453117.

71135406 is a `hidden beast` number, since 7 + 113 + 540 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 71135406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1975966 + ... + 1976001.

It is an arithmetic number, because the mean of its divisors is an integer number (12843896).

Almost surely, 2^71135406 is an apocalyptic number.

71135406 is an abundant number, since it is smaller than the sum of its proper divisors (82991346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71135406 is a wasteful number, since it uses less digits than its factorization.

71135406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3951975 (or 3951972 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 71135406 is about 8434.1808138076. The cubic root of 71135406 is about 414.3448432562.

The spelling of 71135406 in words is "seventy-one million, one hundred thirty-five thousand, four hundred six".