13150181947 has 4 divisors (see below), whose sum is σ = 15028779376. Its totient is φ = 11271584520.

The previous prime is 13150181929. The next prime is 13150181963. The reversal of 13150181947 is 74918105131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74918105131 = 157 ⋅477185383.

It is a de Polignac number, because none of the positive numbers 2^k-13150181947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13150181977) 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, 939298704 + ... + 939298717.

It is an arithmetic number, because the mean of its divisors is an integer number (3757194844).

Almost surely, 2^13150181947 is an apocalyptic number.

13150181947 is a deficient number, since it is larger than the sum of its proper divisors (1878597429).

13150181947 is an equidigital number, since it uses as much as digits as its factorization.

13150181947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878597428.

The product of its (nonzero) digits is 30240, while the sum is 40.

The spelling of 13150181947 in words is "thirteen billion, one hundred fifty million, one hundred eighty-one thousand, nine hundred forty-seven".