71487041 has 2 divisors, whose sum is σ = 71487042. Its totient is φ = 71487040.

The previous prime is 71487037. The next prime is 71487043. The reversal of 71487041 is 14078417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71487025 + 16 = 8455^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 71487041 - 2² = 71487037 is a prime.

It is a super-2 number, since 2×71487041² = 10220794061871362, which contains 22 as substring.

Together with 71487043, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 71486989 and 71487007.

It is not a weakly prime, because it can be changed into another prime (71487043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35743520 + 35743521.

It is an arithmetic number, because the mean of its divisors is an integer number (35743521).

Almost surely, 2^71487041 is an apocalyptic number.

It is an amenable number.

71487041 is a deficient number, since it is larger than the sum of its proper divisors (1).

71487041 is an equidigital number, since it uses as much as digits as its factorization.

71487041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 71487041 is about 8455.0009461856. Note that the first 3 decimals coincide. The cubic root of 71487041 is about 415.0264482104.

The spelling of 71487041 in words is "seventy-one million, four hundred eighty-seven thousand, forty-one".