13115471 has 2 divisors, whose sum is σ = 13115472. Its totient is φ = 13115470.

The previous prime is 13115437. The next prime is 13115477. The reversal of 13115471 is 17451131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13115471 - 2¹⁰ = 13114447 is a prime.

It is a super-3 number, since 3×13115471³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13115477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6557735 + 6557736.

It is an arithmetic number, because the mean of its divisors is an integer number (6557736).

Almost surely, 2^13115471 is an apocalyptic number.

13115471 is a deficient number, since it is larger than the sum of its proper divisors (1).

13115471 is an equidigital number, since it uses as much as digits as its factorization.

13115471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 420, while the sum is 23.

The square root of 13115471 is about 3621.5288208159. The cubic root of 13115471 is about 235.8275996003.

The spelling of 13115471 in words is "thirteen million, one hundred fifteen thousand, four hundred seventy-one".