71441999 has 2 divisors, whose sum is σ = 71442000. Its totient is φ = 71441998.

The previous prime is 71441989. The next prime is 71442013. The reversal of 71441999 is 99914417.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71441999 - 2⁴ = 71441983 is a prime.

It is a super-2 number, since 2×71441999² = 10207918442232002, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71441989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35720999 + 35721000.

It is an arithmetic number, because the mean of its divisors is an integer number (35721000).

Almost surely, 2^71441999 is an apocalyptic number.

71441999 is a deficient number, since it is larger than the sum of its proper divisors (1).

71441999 is an equidigital number, since it uses as much as digits as its factorization.

71441999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 44.

The square root of 71441999 is about 8452.3368957940. The cubic root of 71441999 is about 414.9392643492.

The spelling of 71441999 in words is "seventy-one million, four hundred forty-one thousand, nine hundred ninety-nine".