149481539485823 has 2 divisors, whose sum is σ = 149481539485824. Its totient is φ = 149481539485822.

The previous prime is 149481539485801. The next prime is 149481539485841. The reversal of 149481539485823 is 328584935184941.

It is a strong prime.

It is an emirp because it is prime and its reverse (328584935184941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149481539485823 - 2¹⁰ = 149481539484799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149481539482823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74740769742911 + 74740769742912.

It is an arithmetic number, because the mean of its divisors is an integer number (74740769742912).

Almost surely, 2^{149481539485823} is an apocalyptic number.

149481539485823 is a deficient number, since it is larger than the sum of its proper divisors (1).

149481539485823 is an equidigital number, since it uses as much as digits as its factorization.

149481539485823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1194393600, while the sum is 74.

The spelling of 149481539485823 in words is "one hundred forty-nine trillion, four hundred eighty-one billion, five hundred thirty-nine million, four hundred eighty-five thousand, eight hundred twenty-three".