15141785149 has 2 divisors, whose sum is σ = 15141785150. Its totient is φ = 15141785148.

The previous prime is 15141785147. The next prime is 15141785209. The reversal of 15141785149 is 94158714151.

It is a happy number.

15141785149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14847422500 + 294362649 = 121850^2 + 17157^2 .

It is a cyclic number.

It is not a de Polignac number, because 15141785149 - 2¹ = 15141785147 is a prime.

Together with 15141785147, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 15141785099 and 15141785108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15141785143) 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, 7570892574 + 7570892575.

It is an arithmetic number, because the mean of its divisors is an integer number (7570892575).

Almost surely, 2^15141785149 is an apocalyptic number.

It is an amenable number.

15141785149 is a deficient number, since it is larger than the sum of its proper divisors (1).

15141785149 is an equidigital number, since it uses as much as digits as its factorization.

15141785149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 46.

The spelling of 15141785149 in words is "fifteen billion, one hundred forty-one million, seven hundred eighty-five thousand, one hundred forty-nine".