71361512 has 32 divisors (see below), whose sum is σ = 142067520. Its totient is φ = 33488640.

The previous prime is 71361487. The next prime is 71361517. The reversal of 71361512 is 21516317.

It is a super-2 number, since 2×71361512² = 10184930789852288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71361517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87587 + ... + 88397.

It is an arithmetic number, because the mean of its divisors is an integer number (4439610).

Almost surely, 2^71361512 is an apocalyptic number.

It is an amenable number.

71361512 is a deficient number, since it is larger than the sum of its proper divisors (70706008).

71361512 is a wasteful number, since it uses less digits than its factorization.

71361512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481 (or 1477 counting only the distinct ones).

The product of its digits is 1260, while the sum is 26.

The square root of 71361512 is about 8447.5743263969. The cubic root of 71361512 is about 414.7833814105.

Adding to 71361512 its reverse (21516317), we get a palindrome (92877829).

The spelling of 71361512 in words is "seventy-one million, three hundred sixty-one thousand, five hundred twelve".