71412111 has 16 divisors (see below), whose sum is σ = 107105120. Its totient is φ = 47606616.

The previous prime is 71412101. The next prime is 71412137. The reversal of 71412111 is 11121417.

It is not a de Polignac number, because 71412111 - 2¹¹ = 71410063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71412101) 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, 14140 + ... + 18513.

It is an arithmetic number, because the mean of its divisors is an integer number (6694070).

Almost surely, 2^71412111 is an apocalyptic number.

71412111 is a deficient number, since it is larger than the sum of its proper divisors (35693009).

71412111 is an frugal number, since it uses more digits than its factorization.

71412111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32674 (or 32656 counting only the distinct ones).

The product of its digits is 56, while the sum is 18.

The square root of 71412111 is about 8450.5686790890. The cubic root of 71412111 is about 414.8813925337.

Adding to 71412111 its reverse (11121417), we get a palindrome (82533528).

The spelling of 71412111 in words is "seventy-one million, four hundred twelve thousand, one hundred eleven".