13650554149 has 2 divisors, whose sum is σ = 13650554150. Its totient is φ = 13650554148.

The previous prime is 13650554147. The next prime is 13650554191. The reversal of 13650554149 is 94145505631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12570445924 + 1080108225 = 112118^2 + 32865^2 .

It is a cyclic number.

It is not a de Polignac number, because 13650554149 - 2¹ = 13650554147 is a prime.

It is a super-2 number, since 2×13650554149² (a number of 21 digits) contains 22 as substring.

Together with 13650554147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13650554147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6825277074 + 6825277075.

It is an arithmetic number, because the mean of its divisors is an integer number (6825277075).

Almost surely, 2^13650554149 is an apocalyptic number.

It is an amenable number.

13650554149 is a deficient number, since it is larger than the sum of its proper divisors (1).

13650554149 is an equidigital number, since it uses as much as digits as its factorization.

13650554149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 13650554149 in words is "thirteen billion, six hundred fifty million, five hundred fifty-four thousand, one hundred forty-nine".