71145316 has 12 divisors (see below), whose sum is σ = 135822960. Its totient is φ = 32338760.

The previous prime is 71145247. The next prime is 71145317. The reversal of 71145316 is 61354117.

It is not an unprimeable number, because it can be changed into a prime (71145317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 808426 + ... + 808513.

It is an arithmetic number, because the mean of its divisors is an integer number (11318580).

Almost surely, 2^71145316 is an apocalyptic number.

It is an amenable number.

71145316 is a deficient number, since it is larger than the sum of its proper divisors (64677644).

71145316 is a wasteful number, since it uses less digits than its factorization.

71145316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616954 (or 1616952 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 71145316 is about 8434.7682837171. The cubic root of 71145316 is about 414.3640834020.

The spelling of 71145316 in words is "seventy-one million, one hundred forty-five thousand, three hundred sixteen".