71290099 has 2 divisors, whose sum is σ = 71290100. Its totient is φ = 71290098.

The previous prime is 71290057. The next prime is 71290127. The reversal of 71290099 is 99009217.

It is a strong prime.

It is an emirp because it is prime and its reverse (99009217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71290099 - 2⁷ = 71289971 is a prime.

It is not a weakly prime, because it can be changed into another prime (71290039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35645049 + 35645050.

It is an arithmetic number, because the mean of its divisors is an integer number (35645050).

Almost surely, 2^71290099 is an apocalyptic number.

71290099 is a deficient number, since it is larger than the sum of its proper divisors (1).

71290099 is an equidigital number, since it uses as much as digits as its factorization.

71290099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 71290099 is about 8443.3464337311. The cubic root of 71290099 is about 414.6449743474.

The spelling of 71290099 in words is "seventy-one million, two hundred ninety thousand, ninety-nine".