7129091 has 2 divisors, whose sum is σ = 7129092. Its totient is φ = 7129090.

The previous prime is 7129081. The next prime is 7129093. The reversal of 7129091 is 1909217.

It is a strong prime.

It is an emirp because it is prime and its reverse (1909217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7129091 - 2⁶ = 7129027 is a prime.

Together with 7129093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7129093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3564545 + 3564546.

It is an arithmetic number, because the mean of its divisors is an integer number (3564546).

Almost surely, 2^7129091 is an apocalyptic number.

7129091 is a deficient number, since it is larger than the sum of its proper divisors (1).

7129091 is an equidigital number, since it uses as much as digits as its factorization.

7129091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 7129091 is about 2670.0357675507. The cubic root of 7129091 is about 192.4618780978.

The spelling of 7129091 in words is "seven million, one hundred twenty-nine thousand, ninety-one".