71227073 has 2 divisors, whose sum is σ = 71227074. Its totient is φ = 71227072.

The previous prime is 71227001. The next prime is 71227139. The reversal of 71227073 is 37072217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51093904 + 20133169 = 7148^2 + 4487^2 .

It is a cyclic number.

It is not a de Polignac number, because 71227073 - 2⁸ = 71226817 is a prime.

It is not a weakly prime, because it can be changed into another prime (71227873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35613536 + 35613537.

It is an arithmetic number, because the mean of its divisors is an integer number (35613537).

Almost surely, 2^71227073 is an apocalyptic number.

It is an amenable number.

71227073 is a deficient number, since it is larger than the sum of its proper divisors (1).

71227073 is an equidigital number, since it uses as much as digits as its factorization.

71227073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4116, while the sum is 29.

The square root of 71227073 is about 8439.6133205260. The cubic root of 71227073 is about 414.5227455030.

The spelling of 71227073 in words is "seventy-one million, two hundred twenty-seven thousand, seventy-three".