135042461 has 2 divisors, whose sum is σ = 135042462. Its totient is φ = 135042460.

The previous prime is 135042331. The next prime is 135042469. The reversal of 135042461 is 164240531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80371225 + 54671236 = 8965^2 + 7394^2 .

It is a cyclic number.

It is not a de Polignac number, because 135042461 - 2¹⁰ = 135041437 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135042461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135042469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67521230 + 67521231.

It is an arithmetic number, because the mean of its divisors is an integer number (67521231).

Almost surely, 2^135042461 is an apocalyptic number.

It is an amenable number.

135042461 is a deficient number, since it is larger than the sum of its proper divisors (1).

135042461 is an equidigital number, since it uses as much as digits as its factorization.

135042461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 135042461 is about 11620.7771254766. Note that the first 3 decimals coincide. The cubic root of 135042461 is about 513.0465615421.

Adding to 135042461 its reverse (164240531), we get a palindrome (299282992).

The spelling of 135042461 in words is "one hundred thirty-five million, forty-two thousand, four hundred sixty-one".