71123941 has 6 divisors (see below), whose sum is σ = 82736070. Its totient is φ = 60963336.

The previous prime is 71123891. The next prime is 71123947. The reversal of 71123941 is 14932117.

It can be written as a sum of positive squares in only one way, i.e., 37773316 + 33350625 = 6146^2 + 5775^2 .

It is not a de Polignac number, because 71123941 - 2⁷ = 71123813 is a prime.

It is a super-2 number, since 2×71123941² = 10117229966742962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71123947) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 725706 + ... + 725803.

It is an arithmetic number, because the mean of its divisors is an integer number (13789345).

Almost surely, 2^71123941 is an apocalyptic number.

It is an amenable number.

71123941 is a deficient number, since it is larger than the sum of its proper divisors (11612129).

71123941 is a wasteful number, since it uses less digits than its factorization.

71123941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451523 (or 1451516 counting only the distinct ones).

The product of its digits is 1512, while the sum is 28.

The square root of 71123941 is about 8433.5011116380. The cubic root of 71123941 is about 414.3225818671.

The spelling of 71123941 in words is "seventy-one million, one hundred twenty-three thousand, nine hundred forty-one".