71148863 has 4 divisors (see below), whose sum is σ = 74893560. Its totient is φ = 67404168.

The previous prime is 71148853. The next prime is 71148877. The reversal of 71148863 is 36884117.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36884117 = 2467 ⋅14951.

It is a cyclic number.

It is not a de Polignac number, because 71148863 - 2⁶ = 71148799 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 (71148823) 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, 1872320 + ... + 1872357.

It is an arithmetic number, because the mean of its divisors is an integer number (18723390).

Almost surely, 2^71148863 is an apocalyptic number.

71148863 is a deficient number, since it is larger than the sum of its proper divisors (3744697).

71148863 is a wasteful number, since it uses less digits than its factorization.

71148863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3744696.

The product of its digits is 32256, while the sum is 38.

The square root of 71148863 is about 8434.9785417629. The cubic root of 71148863 is about 414.3709694256.

The spelling of 71148863 in words is "seventy-one million, one hundred forty-eight thousand, eight hundred sixty-three".