13413531 has 16 divisors (see below), whose sum is σ = 18925056. Its totient is φ = 8433216.

The previous prime is 13413529. The next prime is 13413539. The reversal of 13413531 is 13531431.

13413531 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13413531 - 2¹ = 13413529 is a prime.

It is a super-2 number, since 2×13413531² = 359845627775922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13413498 and 13413507.

It is not an unprimeable number, because it can be changed into a prime (13413539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3706 + ... + 6368.

It is an arithmetic number, because the mean of its divisors is an integer number (1182816).

Almost surely, 2^13413531 is an apocalyptic number.

13413531 is a deficient number, since it is larger than the sum of its proper divisors (5511525).

13413531 is a wasteful number, since it uses less digits than its factorization.

13413531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762.

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

The square root of 13413531 is about 3662.4487709728. The cubic root of 13413531 is about 237.6006945133.

Adding to 13413531 its reverse (13531431), we get a palindrome (26944962).

The spelling of 13413531 in words is "thirteen million, four hundred thirteen thousand, five hundred thirty-one".