71107140 has 48 divisors (see below), whose sum is σ = 214417728. Its totient is φ = 17503104.

The previous prime is 71107133. The next prime is 71107147. The reversal of 71107140 is 4170117.

It is an interprime number because it is at equal distance from previous prime (71107133) and next prime (71107147).

It is not an unprimeable number, because it can be changed into a prime (71107147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44802 + ... + 46361.

It is an arithmetic number, because the mean of its divisors is an integer number (4467036).

Almost surely, 2^71107140 is an apocalyptic number.

It is an amenable number.

71107140 is an abundant number, since it is smaller than the sum of its proper divisors (143310588).

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

71107140 is a wasteful number, since it uses less digits than its factorization.

71107140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91188 (or 91186 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 21.

The square root of 71107140 is about 8432.5049659043. The cubic root of 71107140 is about 414.2899553385.

Adding to 71107140 its reverse (4170117), we get a palindrome (75277257).

The spelling of 71107140 in words is "seventy-one million, one hundred seven thousand, one hundred forty".