13249961173 has 2 divisors, whose sum is σ = 13249961174. Its totient is φ = 13249961172.

The previous prime is 13249961111. The next prime is 13249961189. The reversal of 13249961173 is 37116994231.

13249961173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12837343204 + 412617969 = 113302^2 + 20313^2 .

It is a cyclic number.

It is not a de Polignac number, because 13249961173 - 2²⁵ = 13216406741 is a prime.

It is a super-2 number, since 2×13249961173² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13249961273) 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 as a sum of consecutive naturals, namely, 6624980586 + 6624980587.

It is an arithmetic number, because the mean of its divisors is an integer number (6624980587).

Almost surely, 2^13249961173 is an apocalyptic number.

It is an amenable number.

13249961173 is a deficient number, since it is larger than the sum of its proper divisors (1).

13249961173 is an equidigital number, since it uses as much as digits as its factorization.

13249961173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 46.

The spelling of 13249961173 in words is "thirteen billion, two hundred forty-nine million, nine hundred sixty-one thousand, one hundred seventy-three".