7201091 has 2 divisors, whose sum is σ = 7201092. Its totient is φ = 7201090.

The previous prime is 7201063. The next prime is 7201097. The reversal of 7201091 is 1901027.

It is a strong prime.

It is an emirp because it is prime and its reverse (1901027) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7201091 is a prime.

It is not a weakly prime, because it can be changed into another prime (7201097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3600545 + 3600546.

It is an arithmetic number, because the mean of its divisors is an integer number (3600546).

Almost surely, 2^7201091 is an apocalyptic number.

7201091 is a deficient number, since it is larger than the sum of its proper divisors (1).

7201091 is an equidigital number, since it uses as much as digits as its factorization.

7201091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 7201091 is about 2683.4848611460. The cubic root of 7201091 is about 193.1076296593.

The spelling of 7201091 in words is "seven million, two hundred one thousand, ninety-one".