13531100155 has 8 divisors (see below), whose sum is σ = 16256272032. Its totient is φ = 10812245568.

The previous prime is 13531100119. The next prime is 13531100213. The reversal of 13531100155 is 55100113531.

It is a happy number.

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 13531100155 - 2⁷ = 13531100027 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1574607 + ... + 1583176.

It is an arithmetic number, because the mean of its divisors is an integer number (2032034004).

Almost surely, 2^13531100155 is an apocalyptic number.

13531100155 is a deficient number, since it is larger than the sum of its proper divisors (2725171877).

13531100155 is an equidigital number, since it uses as much as digits as its factorization.

13531100155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3158645.

The product of its (nonzero) digits is 1125, while the sum is 25.

Adding to 13531100155 its reverse (55100113531), we get a palindrome (68631213686).

The spelling of 13531100155 in words is "thirteen billion, five hundred thirty-one million, one hundred thousand, one hundred fifty-five".