71141789 has 2 divisors, whose sum is σ = 71141790. Its totient is φ = 71141788.

The previous prime is 71141773. The next prime is 71141801. The reversal of 71141789 is 98714117.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63329764 + 7812025 = 7958^2 + 2795^2 .

It is a cyclic number.

It is not a de Polignac number, because 71141789 - 2⁴ = 71141773 is a prime.

It is a super-2 number, since 2×71141789² = 10122308284241042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71141489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35570894 + 35570895.

It is an arithmetic number, because the mean of its divisors is an integer number (35570895).

Almost surely, 2^71141789 is an apocalyptic number.

It is an amenable number.

71141789 is a deficient number, since it is larger than the sum of its proper divisors (1).

71141789 is an equidigital number, since it uses as much as digits as its factorization.

71141789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 38.

The square root of 71141789 is about 8434.5592060285. The cubic root of 71141789 is about 414.3572359787.

The spelling of 71141789 in words is "seventy-one million, one hundred forty-one thousand, seven hundred eighty-nine".