71413273 has 2 divisors, whose sum is σ = 71413274. Its totient is φ = 71413272.

The previous prime is 71413261. The next prime is 71413301. The reversal of 71413273 is 37231417.

It is an a-pointer prime, because the next prime (71413301) can be obtained adding 71413273 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70358544 + 1054729 = 8388^2 + 1027^2 .

It is a cyclic number.

It is not a de Polignac number, because 71413273 - 2⁵ = 71413241 is a prime.

It is not a weakly prime, because it can be changed into another prime (71413213) 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, 35706636 + 35706637.

It is an arithmetic number, because the mean of its divisors is an integer number (35706637).

Almost surely, 2^71413273 is an apocalyptic number.

It is an amenable number.

71413273 is a deficient number, since it is larger than the sum of its proper divisors (1).

71413273 is an equidigital number, since it uses as much as digits as its factorization.

71413273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3528, while the sum is 28.

The square root of 71413273 is about 8450.6374315788. The cubic root of 71413273 is about 414.8836428035.

The spelling of 71413273 in words is "seventy-one million, four hundred thirteen thousand, two hundred seventy-three".