13115526 has 8 divisors (see below), whose sum is σ = 26231064. Its totient is φ = 4371840.

The previous prime is 13115513. The next prime is 13115527. The reversal of 13115526 is 62551131.

13115526 = 586² + 587² + ... + 621².

It is a sphenic number, since it is the product of 3 distinct primes.

13115526 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 13115496 and 13115505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13115527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1092955 + ... + 1092966.

It is an arithmetic number, because the mean of its divisors is an integer number (3278883).

Almost surely, 2^13115526 is an apocalyptic number.

13115526 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13115526 is a wasteful number, since it uses less digits than its factorization.

13115526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185926.

The product of its digits is 900, while the sum is 24.

The square root of 13115526 is about 3621.5364142861. The cubic root of 13115526 is about 235.8279292492.

Adding to 13115526 its reverse (62551131), we get a palindrome (75666657).

The spelling of 13115526 in words is "thirteen million, one hundred fifteen thousand, five hundred twenty-six".