71458061 has 2 divisors, whose sum is σ = 71458062. Its totient is φ = 71458060.

The previous prime is 71458043. The next prime is 71458067. The reversal of 71458061 is 16085417.

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., 59382436 + 12075625 = 7706^2 + 3475^2 .

It is a cyclic number.

It is not a de Polignac number, because 71458061 - 2¹⁴ = 71441677 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 (71458067) 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, 35729030 + 35729031.

It is an arithmetic number, because the mean of its divisors is an integer number (35729031).

Almost surely, 2^71458061 is an apocalyptic number.

It is an amenable number.

71458061 is a deficient number, since it is larger than the sum of its proper divisors (1).

71458061 is an equidigital number, since it uses as much as digits as its factorization.

71458061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 71458061 is about 8453.2869938267. The cubic root of 71458061 is about 414.9703583609.

The spelling of 71458061 in words is "seventy-one million, four hundred fifty-eight thousand, sixty-one".