15091 has 2 divisors, whose sum is σ = 15092. Its totient is φ = 15090.

The previous prime is 15083. The next prime is 15101. The reversal of 15091 is 19051.

It is a weak prime.

It is an emirp because it is prime and its reverse (19051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15091 - 2³ = 15083 is a prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (15031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7545 + 7546.

It is an arithmetic number, because the mean of its divisors is an integer number (7546).

2¹⁵⁰⁹¹ is an apocalyptic number.

15091 is a deficient number, since it is larger than the sum of its proper divisors (1).

15091 is an equidigital number, since it uses as much as digits as its factorization.

15091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 15091 is about 122.8454313355. The cubic root of 15091 is about 24.7118925176.

The spelling of 15091 in words is "fifteen thousand, ninety-one".