71440075 has 12 divisors (see below), whose sum is σ = 101241040. Its totient is φ = 48987360.

The previous prime is 71440073. The next prime is 71440087. The reversal of 71440075 is 57004417.

It is not a de Polignac number, because 71440075 - 2¹ = 71440073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71440073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203940 + ... + 204289.

Almost surely, 2^71440075 is an apocalyptic number.

71440075 is a deficient number, since it is larger than the sum of its proper divisors (29800965).

71440075 is a wasteful number, since it uses less digits than its factorization.

71440075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408246 (or 408241 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 71440075 is about 8452.2230803499. The cubic root of 71440075 is about 414.9355394147.

The spelling of 71440075 in words is "seventy-one million, four hundred forty thousand, seventy-five".