13124531 has 8 divisors (see below), whose sum is σ = 15025920. Its totient is φ = 11229768.

The previous prime is 13124521. The next prime is 13124533. The reversal of 13124531 is 13542131.

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

It is a cyclic number.

It is not a de Polignac number, because 13124531 - 2²² = 8930227 is a prime.

It is a super-2 number, since 2×13124531² = 344506627939922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13124533) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3800 + ... + 6378.

It is an arithmetic number, because the mean of its divisors is an integer number (1878240).

Almost surely, 2^13124531 is an apocalyptic number.

13124531 is a deficient number, since it is larger than the sum of its proper divisors (1901389).

13124531 is an equidigital number, since it uses as much as digits as its factorization.

13124531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313.

The product of its digits is 360, while the sum is 20.

The square root of 13124531 is about 3622.7794578196. The cubic root of 13124531 is about 235.8818893335.

Adding to 13124531 its reverse (13542131), we get a palindrome (26666662).

The spelling of 13124531 in words is "thirteen million, one hundred twenty-four thousand, five hundred thirty-one".