13156047401 has 4 divisors (see below), whose sum is σ = 15035482752. Its totient is φ = 11276612052.

The previous prime is 13156047389. The next prime is 13156047451. The reversal of 13156047401 is 10474065131.

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.

It is a cyclic number.

It is not a de Polignac number, because 13156047401 - 2⁶ = 13156047337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13156047451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 939717665 + ... + 939717678.

It is an arithmetic number, because the mean of its divisors is an integer number (3758870688).

Almost surely, 2^13156047401 is an apocalyptic number.

It is an amenable number.

13156047401 is a deficient number, since it is larger than the sum of its proper divisors (1879435351).

13156047401 is an equidigital number, since it uses as much as digits as its factorization.

13156047401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879435350.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 13156047401 in words is "thirteen billion, one hundred fifty-six million, forty-seven thousand, four hundred one".