13630091 has 2 divisors, whose sum is σ = 13630092. Its totient is φ = 13630090.

The previous prime is 13630061. The next prime is 13630109. The reversal of 13630091 is 19003631.

Together with next prime (13630109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13630091 - 2¹⁰ = 13629067 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13630031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6815045 + 6815046.

It is an arithmetic number, because the mean of its divisors is an integer number (6815046).

Almost surely, 2^13630091 is an apocalyptic number.

13630091 is a deficient number, since it is larger than the sum of its proper divisors (1).

13630091 is an equidigital number, since it uses as much as digits as its factorization.

13630091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 13630091 is about 3691.8953127086. The cubic root of 13630091 is about 238.8725533288.

The spelling of 13630091 in words is "thirteen million, six hundred thirty thousand, ninety-one".