13501912169 has 4 divisors (see below), whose sum is σ = 13789186944. Its totient is φ = 13214637396.

The previous prime is 13501912129. The next prime is 13501912189. The reversal of 13501912169 is 96121910531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96121910531 = 29 ⋅3314548639.

It is a cyclic number.

It is not a de Polignac number, because 13501912169 - 2²⁴ = 13485134953 is a prime.

It is a super-2 number, since 2×13501912169² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13501912129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143637317 + ... + 143637410.

It is an arithmetic number, because the mean of its divisors is an integer number (3447296736).

Almost surely, 2^13501912169 is an apocalyptic number.

It is an amenable number.

13501912169 is a deficient number, since it is larger than the sum of its proper divisors (287274775).

13501912169 is an equidigital number, since it uses as much as digits as its factorization.

13501912169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287274774.

The product of its (nonzero) digits is 14580, while the sum is 38.

The spelling of 13501912169 in words is "thirteen billion, five hundred one million, nine hundred twelve thousand, one hundred sixty-nine".