71618113 has 8 divisors (see below), whose sum is σ = 85408128. Its totient is φ = 58717824.

The previous prime is 71618101. The next prime is 71618119. The reversal of 71618113 is 31181617.

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

It is a cyclic number.

It is not a de Polignac number, because 71618113 - 2¹⁷ = 71487041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71618119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222256 + ... + 222577.

It is an arithmetic number, because the mean of its divisors is an integer number (10676016).

Almost surely, 2^71618113 is an apocalyptic number.

It is an amenable number.

71618113 is a deficient number, since it is larger than the sum of its proper divisors (13790015).

71618113 is a wasteful number, since it uses less digits than its factorization.

71618113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444863.

The product of its digits is 1008, while the sum is 28.

The square root of 71618113 is about 8462.7485487872. The cubic root of 71618113 is about 415.2799446628.

The spelling of 71618113 in words is "seventy-one million, six hundred eighteen thousand, one hundred thirteen".