13531246157 has 16 divisors (see below), whose sum is σ = 16042709760. Its totient is φ = 11250705600.

The previous prime is 13531246153. The next prime is 13531246159. The reversal of 13531246157 is 75164213531.

It is a happy number.

13531246157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13531246157 - 2² = 13531246153 is a prime.

It is a super-2 number, since 2×13531246157² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13531246157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531246153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418469 + ... + 449642.

It is an arithmetic number, because the mean of its divisors is an integer number (1002669360).

Almost surely, 2^13531246157 is an apocalyptic number.

It is an amenable number.

13531246157 is a deficient number, since it is larger than the sum of its proper divisors (2511463603).

13531246157 is a wasteful number, since it uses less digits than its factorization.

13531246157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868244.

The product of its digits is 75600, while the sum is 38.

Adding to 13531246157 its reverse (75164213531), we get a palindrome (88695459688).

The spelling of 13531246157 in words is "thirteen billion, five hundred thirty-one million, two hundred forty-six thousand, one hundred fifty-seven".