134919574549 has 2 divisors, whose sum is σ = 134919574550. Its totient is φ = 134919574548.

The previous prime is 134919574507. The next prime is 134919574651. The reversal of 134919574549 is 945475919431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116564202225 + 18355372324 = 341415^2 + 135482^2 .

It is a cyclic number.

It is not a de Polignac number, because 134919574549 - 2¹⁵ = 134919541781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134919572549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67459787274 + 67459787275.

It is an arithmetic number, because the mean of its divisors is an integer number (67459787275).

Almost surely, 2^134919574549 is an apocalyptic number.

It is an amenable number.

134919574549 is a deficient number, since it is larger than the sum of its proper divisors (1).

134919574549 is an equidigital number, since it uses as much as digits as its factorization.

134919574549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24494400, while the sum is 61.

The spelling of 134919574549 in words is "one hundred thirty-four billion, nine hundred nineteen million, five hundred seventy-four thousand, five hundred forty-nine".