71261612 has 12 divisors (see below), whose sum is σ = 125067600. Its totient is φ = 35528016.

The previous prime is 71261611. The next prime is 71261623. The reversal of 71261612 is 21616217.

It is not an unprimeable number, because it can be changed into a prime (71261611) 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, 24128 + ... + 26919.

It is an arithmetic number, because the mean of its divisors is an integer number (10422300).

Almost surely, 2^71261612 is an apocalyptic number.

It is an amenable number.

71261612 is a deficient number, since it is larger than the sum of its proper divisors (53805988).

71261612 is a wasteful number, since it uses less digits than its factorization.

71261612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51400 (or 51398 counting only the distinct ones).

The product of its digits is 1008, while the sum is 26.

The square root of 71261612 is about 8441.6593155611. The cubic root of 71261612 is about 414.5897372938.

Adding to 71261612 its reverse (21616217), we get a palindrome (92877829).

The spelling of 71261612 in words is "seventy-one million, two hundred sixty-one thousand, six hundred twelve".