71354141 has 2 divisors, whose sum is σ = 71354142. Its totient is φ = 71354140.

The previous prime is 71354137. The next prime is 71354147. The reversal of 71354141 is 14145317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57441241 + 13912900 = 7579^2 + 3730^2 .

It is a cyclic number.

It is not a de Polignac number, because 71354141 - 2² = 71354137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71354141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71354147) 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 as a sum of consecutive naturals, namely, 35677070 + 35677071.

It is an arithmetic number, because the mean of its divisors is an integer number (35677071).

Almost surely, 2^71354141 is an apocalyptic number.

It is an amenable number.

71354141 is a deficient number, since it is larger than the sum of its proper divisors (1).

71354141 is an equidigital number, since it uses as much as digits as its factorization.

71354141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 26.

The square root of 71354141 is about 8447.1380360451. The cubic root of 71354141 is about 414.7690997924.

Adding to 71354141 its reverse (14145317), we get a palindrome (85499458).

The spelling of 71354141 in words is "seventy-one million, three hundred fifty-four thousand, one hundred forty-one".