71113508 has 6 divisors (see below), whose sum is σ = 124448646. Its totient is φ = 35556752.

The previous prime is 71113501. The next prime is 71113531. The reversal of 71113508 is 80531117.

It can be written as a sum of positive squares in only one way, i.e., 71098624 + 14884 = 8432^2 + 122^2 .

It is not an unprimeable number, because it can be changed into a prime (71113501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8889185 + ... + 8889192.

It is an arithmetic number, because the mean of its divisors is an integer number (20741441).

Almost surely, 2^71113508 is an apocalyptic number.

It is an amenable number.

71113508 is a deficient number, since it is larger than the sum of its proper divisors (53335138).

71113508 is a wasteful number, since it uses less digits than its factorization.

71113508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17778381 (or 17778379 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 71113508 is about 8432.8825439466. The cubic root of 71113508 is about 414.3023222151.

The spelling of 71113508 in words is "seventy-one million, one hundred thirteen thousand, five hundred eight".