15116291 has 2 divisors, whose sum is σ = 15116292. Its totient is φ = 15116290.

The previous prime is 15116273. The next prime is 15116293. The reversal of 15116291 is 19261151.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15116291 is a prime.

Together with 15116293, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15116291.

It is not a weakly prime, because it can be changed into another prime (15116293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7558145 + 7558146.

It is an arithmetic number, because the mean of its divisors is an integer number (7558146).

Almost surely, 2^15116291 is an apocalyptic number.

15116291 is a deficient number, since it is larger than the sum of its proper divisors (1).

15116291 is an equidigital number, since it uses as much as digits as its factorization.

15116291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 26.

The square root of 15116291 is about 3887.9674638556. The cubic root of 15116291 is about 247.2568969604.

The spelling of 15116291 in words is "fifteen million, one hundred sixteen thousand, two hundred ninety-one".