71231875 has 40 divisors (see below), whose sum is σ = 104703984. Its totient is φ = 47760000.

The previous prime is 71231873. The next prime is 71231879. The reversal of 71231875 is 57813217.

It is not a de Polignac number, because 71231875 - 2¹ = 71231873 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 71231875.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71231873) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 88977 + ... + 89773.

Almost surely, 2^71231875 is an apocalyptic number.

71231875 is a deficient number, since it is larger than the sum of its proper divisors (33472109).

71231875 is a wasteful number, since it uses less digits than its factorization.

71231875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841 (or 826 counting only the distinct ones).

The product of its digits is 11760, while the sum is 34.

The square root of 71231875 is about 8439.8978074382. The cubic root of 71231875 is about 414.5320607507.

It can be divided in two parts, 7123 and 1875, that added together give a palindrome (8998).

The spelling of 71231875 in words is "seventy-one million, two hundred thirty-one thousand, eight hundred seventy-five".