71361443 has 4 divisors (see below), whose sum is σ = 73102008. Its totient is φ = 69620880.

The previous prime is 71361439. The next prime is 71361457. The reversal of 71361443 is 34416317.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71361443 - 2² = 71361439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71361343) 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 3 ways as a sum of consecutive naturals, for example, 870221 + ... + 870302.

It is an arithmetic number, because the mean of its divisors is an integer number (18275502).

Almost surely, 2^71361443 is an apocalyptic number.

71361443 is a deficient number, since it is larger than the sum of its proper divisors (1740565).

71361443 is a wasteful number, since it uses less digits than its factorization.

71361443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740564.

The product of its digits is 6048, while the sum is 29.

The square root of 71361443 is about 8447.5702423833. The cubic root of 71361443 is about 414.7832477247.

The spelling of 71361443 in words is "seventy-one million, three hundred sixty-one thousand, four hundred forty-three".