15115427 has 2 divisors, whose sum is σ = 15115428. Its totient is φ = 15115426.

The previous prime is 15115417. The next prime is 15115433. The reversal of 15115427 is 72451151.

15115427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15115427 - 2⁴ = 15115411 is a prime.

It is a super-2 number, since 2×15115427² = 456952266784658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15115396 and 15115405.

It is not a weakly prime, because it can be changed into another prime (15115417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7557713 + 7557714.

It is an arithmetic number, because the mean of its divisors is an integer number (7557714).

Almost surely, 2^15115427 is an apocalyptic number.

15115427 is a deficient number, since it is larger than the sum of its proper divisors (1).

15115427 is an equidigital number, since it uses as much as digits as its factorization.

15115427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1400, while the sum is 26.

The square root of 15115427 is about 3887.8563502269. The cubic root of 15115427 is about 247.2521860599.

Adding to 15115427 its reverse (72451151), we get a palindrome (87566578).

The spelling of 15115427 in words is "fifteen million, one hundred fifteen thousand, four hundred twenty-seven".