135449069461 has 2 divisors, whose sum is σ = 135449069462. Its totient is φ = 135449069460.

The previous prime is 135449069411. The next prime is 135449069507. The reversal of 135449069461 is 164960944531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134230640625 + 1218428836 = 366375^2 + 34906^2 .

It is a cyclic number.

It is not a de Polignac number, because 135449069461 - 2³³ = 126859134869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135449069399 and 135449069408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135449069411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67724534730 + 67724534731.

It is an arithmetic number, because the mean of its divisors is an integer number (67724534731).

Almost surely, 2^135449069461 is an apocalyptic number.

It is an amenable number.

135449069461 is a deficient number, since it is larger than the sum of its proper divisors (1).

135449069461 is an equidigital number, since it uses as much as digits as its factorization.

135449069461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 135449069461 in words is "one hundred thirty-five billion, four hundred forty-nine million, sixty-nine thousand, four hundred sixty-one".