71431055 has 4 divisors (see below), whose sum is σ = 85717272. Its totient is φ = 57144840.

The previous prime is 71431049. The next prime is 71431081. The reversal of 71431055 is 55013417.

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

It is not a de Polignac number, because 71431055 - 2⁴ = 71431039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7143101 + ... + 7143110.

It is an arithmetic number, because the mean of its divisors is an integer number (21429318).

Almost surely, 2^71431055 is an apocalyptic number.

71431055 is a deficient number, since it is larger than the sum of its proper divisors (14286217).

71431055 is a wasteful number, since it uses less digits than its factorization.

71431055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14286216.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 71431055 is about 8451.6894760752. The cubic root of 71431055 is about 414.9180754721.

The spelling of 71431055 in words is "seventy-one million, four hundred thirty-one thousand, fifty-five".