71241589 has 2 divisors, whose sum is σ = 71241590. Its totient is φ = 71241588.

The previous prime is 71241551. The next prime is 71241619. The reversal of 71241589 is 98514217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68062500 + 3179089 = 8250^2 + 1783^2 .

It is an emirp because it is prime and its reverse (98514217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71241589 - 2⁹ = 71241077 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71241389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35620794 + 35620795.

It is an arithmetic number, because the mean of its divisors is an integer number (35620795).

Almost surely, 2^71241589 is an apocalyptic number.

It is an amenable number.

71241589 is a deficient number, since it is larger than the sum of its proper divisors (1).

71241589 is an equidigital number, since it uses as much as digits as its factorization.

71241589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 37.

The square root of 71241589 is about 8440.4732687214. The cubic root of 71241589 is about 414.5509033518.

The spelling of 71241589 in words is "seventy-one million, two hundred forty-one thousand, five hundred eighty-nine".