71441031 has 4 divisors (see below), whose sum is σ = 95254712. Its totient is φ = 47627352.

The previous prime is 71441009. The next prime is 71441039. The reversal of 71441031 is 13014417.

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

It is a de Polignac number, because none of the positive numbers 2^k-71441031 is a prime.

It is a super-2 number, since 2×71441031² = 10207641820685922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71440989 and 71441007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71441039) 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, 11906836 + ... + 11906841.

It is an arithmetic number, because the mean of its divisors is an integer number (23813678).

Almost surely, 2^71441031 is an apocalyptic number.

71441031 is a deficient number, since it is larger than the sum of its proper divisors (23813681).

71441031 is a wasteful number, since it uses less digits than its factorization.

71441031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23813680.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 71441031 is about 8452.2796333297. The cubic root of 71441031 is about 414.9373902741.

Adding to 71441031 its reverse (13014417), we get a palindrome (84455448).

The spelling of 71441031 in words is "seventy-one million, four hundred forty-one thousand, thirty-one".