134824521649 has 2 divisors, whose sum is σ = 134824521650. Its totient is φ = 134824521648.

The previous prime is 134824521539. The next prime is 134824521659. The reversal of 134824521649 is 946125428431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134683862049 + 140659600 = 366993^2 + 11860^2 .

It is an emirp because it is prime and its reverse (946125428431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134824521649 - 2⁹ = 134824521137 is a prime.

It is not a weakly prime, because it can be changed into another prime (134824521659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67412260824 + 67412260825.

It is an arithmetic number, because the mean of its divisors is an integer number (67412260825).

Almost surely, 2^134824521649 is an apocalyptic number.

It is an amenable number.

134824521649 is a deficient number, since it is larger than the sum of its proper divisors (1).

134824521649 is an equidigital number, since it uses as much as digits as its factorization.

134824521649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1658880, while the sum is 49.

The spelling of 134824521649 in words is "one hundred thirty-four billion, eight hundred twenty-four million, five hundred twenty-one thousand, six hundred forty-nine".