71161104 has 40 divisors (see below), whose sum is σ = 210095680. Its totient is φ = 20331648.

The previous prime is 71161091. The next prime is 71161109. The reversal of 71161104 is 40116117.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (71161109) 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, 105559 + ... + 106230.

It is an arithmetic number, because the mean of its divisors is an integer number (5252392).

Almost surely, 2^71161104 is an apocalyptic number.

It is an amenable number.

71161104 is an abundant number, since it is smaller than the sum of its proper divisors (138934576).

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

71161104 is a wasteful number, since it uses less digits than its factorization.

71161104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211807 (or 211801 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 71161104 is about 8435.7041199890. The cubic root of 71161104 is about 414.3947319237.

The spelling of 71161104 in words is "seventy-one million, one hundred sixty-one thousand, one hundred four".