13113534 has 32 divisors (see below), whose sum is σ = 31553280. Its totient is φ = 3549312.

The previous prime is 13113521. The next prime is 13113547. The reversal of 13113534 is 43531131.

It is an interprime number because it is at equal distance from previous prime (13113521) and next prime (13113547).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 13113534.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7419 + ... + 9014.

It is an arithmetic number, because the mean of its divisors is an integer number (986040).

Almost surely, 2^13113534 is an apocalyptic number.

13113534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13113534 is an abundant number, since it is smaller than the sum of its proper divisors (18439746).

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

13113534 is a wasteful number, since it uses less digits than its factorization.

13113534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16464.

The product of its digits is 540, while the sum is 21.

The square root of 13113534 is about 3621.2613824467. The cubic root of 13113534 is about 235.8159893793.

Adding to 13113534 its reverse (43531131), we get a palindrome (56644665).

The spelling of 13113534 in words is "thirteen million, one hundred thirteen thousand, five hundred thirty-four".