135404461 has 2 divisors, whose sum is σ = 135404462. Its totient is φ = 135404460.

The previous prime is 135404449. The next prime is 135404483. The reversal of 135404461 is 164404531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110901961 + 24502500 = 10531^2 + 4950^2 .

It is a cyclic number.

It is not a de Polignac number, because 135404461 - 2⁵ = 135404429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135404441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67702230 + 67702231.

It is an arithmetic number, because the mean of its divisors is an integer number (67702231).

Almost surely, 2^135404461 is an apocalyptic number.

It is an amenable number.

135404461 is a deficient number, since it is larger than the sum of its proper divisors (1).

135404461 is an equidigital number, since it uses as much as digits as its factorization.

135404461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 135404461 is about 11636.3422517559. The cubic root of 135404461 is about 513.5045832849.

Adding to 135404461 its reverse (164404531), we get a palindrome (299808992).

The spelling of 135404461 in words is "one hundred thirty-five million, four hundred four thousand, four hundred sixty-one".