134620045561 has 2 divisors, whose sum is σ = 134620045562. Its totient is φ = 134620045560.

The previous prime is 134620045531. The next prime is 134620045577. The reversal of 134620045561 is 165540026431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133531045561 + 1089000000 = 365419^2 + 33000^2 .

It is a cyclic number.

It is not a de Polignac number, because 134620045561 - 2²⁹ = 134083174649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134620045561.

It is not a weakly prime, because it can be changed into another prime (134620045531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67310022780 + 67310022781.

It is an arithmetic number, because the mean of its divisors is an integer number (67310022781).

Almost surely, 2^134620045561 is an apocalyptic number.

It is an amenable number.

134620045561 is a deficient number, since it is larger than the sum of its proper divisors (1).

134620045561 is an equidigital number, since it uses as much as digits as its factorization.

134620045561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 134620045561 in words is "one hundred thirty-four billion, six hundred twenty million, forty-five thousand, five hundred sixty-one".