71141983 has 4 divisors (see below), whose sum is σ = 77609448. Its totient is φ = 64674520.

The previous prime is 71141933. The next prime is 71142037. The reversal of 71141983 is 38914117.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38914117 = 11 ⋅3537647.

It is a cyclic number.

It is not a de Polignac number, because 71141983 - 2²¹ = 69044831 is a prime.

It is a super-2 number, since 2×71141983² = 10122363490344578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71141933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3233716 + ... + 3233737.

It is an arithmetic number, because the mean of its divisors is an integer number (19402362).

Almost surely, 2^71141983 is an apocalyptic number.

71141983 is a deficient number, since it is larger than the sum of its proper divisors (6467465).

71141983 is a wasteful number, since it uses less digits than its factorization.

71141983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6467464.

The product of its digits is 6048, while the sum is 34.

The square root of 71141983 is about 8434.5707063252. The cubic root of 71141983 is about 414.3576126220.

The spelling of 71141983 in words is "seventy-one million, one hundred forty-one thousand, nine hundred eighty-three".