71112151 has 4 divisors (see below), whose sum is σ = 77576904. Its totient is φ = 64647400.

The previous prime is 71112131. The next prime is 71112161. The reversal of 71112151 is 15121117.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71112151 - 2⁹ = 71111639 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 (71112101) 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, 3232360 + ... + 3232381.

It is an arithmetic number, because the mean of its divisors is an integer number (19394226).

Almost surely, 2^71112151 is an apocalyptic number.

71112151 is a deficient number, since it is larger than the sum of its proper divisors (6464753).

71112151 is a wasteful number, since it uses less digits than its factorization.

71112151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6464752.

The product of its digits is 70, while the sum is 19.

The square root of 71112151 is about 8432.8020847166. The cubic root of 71112151 is about 414.2996869360.

Adding to 71112151 its reverse (15121117), we get a palindrome (86233268).

The spelling of 71112151 in words is "seventy-one million, one hundred twelve thousand, one hundred fifty-one".