71331093 has 12 divisors (see below), whose sum is σ = 106357888. Its totient is φ = 46019880.

The previous prime is 71331089. The next prime is 71331131. The reversal of 71331093 is 39013317.

It is not a de Polignac number, because 71331093 - 2² = 71331089 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 (71331593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127555 + ... + 128112.

Almost surely, 2^71331093 is an apocalyptic number.

It is an amenable number.

71331093 is a deficient number, since it is larger than the sum of its proper divisors (35026795).

71331093 is a wasteful number, since it uses less digits than its factorization.

71331093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255704 (or 255701 counting only the distinct ones).

The product of its (nonzero) digits is 1701, while the sum is 27.

The square root of 71331093 is about 8445.7736768161. The cubic root of 71331093 is about 414.7244369901.

The spelling of 71331093 in words is "seventy-one million, three hundred thirty-one thousand, ninety-three".