71485975 has 12 divisors (see below), whose sum is σ = 96701400. Its totient is φ = 51989600.

The previous prime is 71485963. The next prime is 71485979. The reversal of 71485975 is 57958417.

It is a happy number.

It is not a de Polignac number, because 71485975 - 2¹⁷ = 71354903 is a prime.

It is a super-2 number, since 2×71485975² = 10220489243401250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71485979) 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, 129700 + ... + 130249.

It is an arithmetic number, because the mean of its divisors is an integer number (8058450).

Almost surely, 2^71485975 is an apocalyptic number.

71485975 is a deficient number, since it is larger than the sum of its proper divisors (25215425).

71485975 is a wasteful number, since it uses less digits than its factorization.

71485975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259970 (or 259965 counting only the distinct ones).

The product of its digits is 352800, while the sum is 46.

The square root of 71485975 is about 8454.9379063362. The cubic root of 71485975 is about 415.0243852705.

The spelling of 71485975 in words is "seventy-one million, four hundred eighty-five thousand, nine hundred seventy-five".