15106391 has 2 divisors, whose sum is σ = 15106392. Its totient is φ = 15106390.

The previous prime is 15106379. The next prime is 15106417. The reversal of 15106391 is 19360151.

15106391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (15106417) can be obtained adding 15106391 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15106391 - 2¹⁴ = 15090007 is a prime.

It is a Sophie Germain prime.

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 15106391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15106321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7553195 + 7553196.

It is an arithmetic number, because the mean of its divisors is an integer number (7553196).

Almost surely, 2^15106391 is an apocalyptic number.

15106391 is a deficient number, since it is larger than the sum of its proper divisors (1).

15106391 is an equidigital number, since it uses as much as digits as its factorization.

15106391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 15106391 is about 3886.6940965299. The cubic root of 15106391 is about 247.2029071323.

The spelling of 15106391 in words is "fifteen million, one hundred six thousand, three hundred ninety-one".