71141984 has 12 divisors (see below), whose sum is σ = 140060844. Its totient is φ = 35570976.

The previous prime is 71141933. The next prime is 71142037. The reversal of 71141984 is 48914117.

It is a super-2 number, since 2×71141984² = 10122363774912512, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1111562 + ... + 1111625.

It is an arithmetic number, because the mean of its divisors is an integer number (11671737).

Almost surely, 2^71141984 is an apocalyptic number.

It is an amenable number.

71141984 is a deficient number, since it is larger than the sum of its proper divisors (68918860).

71141984 is a wasteful number, since it uses less digits than its factorization.

71141984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223197 (or 2223189 counting only the distinct ones).

The product of its digits is 8064, while the sum is 35.

The square root of 71141984 is about 8434.5707656051. The cubic root of 71141984 is about 414.3576145634.

The spelling of 71141984 in words is "seventy-one million, one hundred forty-one thousand, nine hundred eighty-four".