134841154460561 has 2 divisors, whose sum is σ = 134841154460562. Its totient is φ = 134841154460560.

The previous prime is 134841154460531. The next prime is 134841154460569. The reversal of 134841154460561 is 165064451148431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91633617777025 + 43207536683536 = 9572545^2 + 6573244^2 .

It is a cyclic number.

It is not a de Polignac number, because 134841154460561 - 2⁶ = 134841154460497 is a prime.

It is not a weakly prime, because it can be changed into another prime (134841154460569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67420577230280 + 67420577230281.

It is an arithmetic number, because the mean of its divisors is an integer number (67420577230281).

Almost surely, 2^{134841154460561} is an apocalyptic number.

It is an amenable number.

134841154460561 is a deficient number, since it is larger than the sum of its proper divisors (1).

134841154460561 is an equidigital number, since it uses as much as digits as its factorization.

134841154460561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5529600, while the sum is 53.

The spelling of 134841154460561 in words is "one hundred thirty-four trillion, eight hundred forty-one billion, one hundred fifty-four million, four hundred sixty thousand, five hundred sixty-one".