71303641 has 2 divisors, whose sum is σ = 71303642. Its totient is φ = 71303640.

The previous prime is 71303629. The next prime is 71303647. The reversal of 71303641 is 14630317.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63441225 + 7862416 = 7965^2 + 2804^2 .

It is a cyclic number.

It is not a de Polignac number, because 71303641 - 2⁹ = 71303129 is a prime.

It is not a weakly prime, because it can be changed into another prime (71303647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35651820 + 35651821.

It is an arithmetic number, because the mean of its divisors is an integer number (35651821).

Almost surely, 2^71303641 is an apocalyptic number.

It is an amenable number.

71303641 is a deficient number, since it is larger than the sum of its proper divisors (1).

71303641 is an equidigital number, since it uses as much as digits as its factorization.

71303641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 71303641 is about 8444.1483288725. The cubic root of 71303641 is about 414.6712274869.

Adding to 71303641 its reverse (14630317), we get a palindrome (85933958).

The spelling of 71303641 in words is "seventy-one million, three hundred three thousand, six hundred forty-one".