71148763 has 4 divisors (see below), whose sum is σ = 81312880. Its totient is φ = 60984648.

The previous prime is 71148739. The next prime is 71148767. The reversal of 71148763 is 36784117.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36784117 = 191 ⋅192587.

It is a cyclic number.

It is not a de Polignac number, because 71148763 - 2⁵ = 71148731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71148767) 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, 5082048 + ... + 5082061.

It is an arithmetic number, because the mean of its divisors is an integer number (20328220).

Almost surely, 2^71148763 is an apocalyptic number.

71148763 is a deficient number, since it is larger than the sum of its proper divisors (10164117).

71148763 is a wasteful number, since it uses less digits than its factorization.

71148763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10164116.

The product of its digits is 28224, while the sum is 37.

The square root of 71148763 is about 8434.9726140634. The cubic root of 71148763 is about 414.3707752922.

The spelling of 71148763 in words is "seventy-one million, one hundred forty-eight thousand, seven hundred sixty-three".