71138575 has 12 divisors (see below), whose sum is σ = 88373560. Its totient is φ = 56806560.

The previous prime is 71138569. The next prime is 71138581. The reversal of 71138575 is 57583117.

It is an interprime number because it is at equal distance from previous prime (71138569) and next prime (71138581).

It is not a de Polignac number, because 71138575 - 2⁷ = 71138447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13177 + ... + 17773.

Almost surely, 2^71138575 is an apocalyptic number.

71138575 is a deficient number, since it is larger than the sum of its proper divisors (17234985).

71138575 is a wasteful number, since it uses less digits than its factorization.

71138575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5226 (or 5221 counting only the distinct ones).

The product of its digits is 29400, while the sum is 37.

The square root of 71138575 is about 8434.3686782118. The cubic root of 71138575 is about 414.3509960259.

The spelling of 71138575 in words is "seventy-one million, one hundred thirty-eight thousand, five hundred seventy-five".