135044542361 has 2 divisors, whose sum is σ = 135044542362. Its totient is φ = 135044542360.

The previous prime is 135044542351. The next prime is 135044542427. The reversal of 135044542361 is 163245440531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121065027136 + 13979515225 = 347944^2 + 118235^2 .

It is a cyclic number.

It is not a de Polignac number, because 135044542361 - 2¹⁴ = 135044525977 is a prime.

It is not a weakly prime, because it can be changed into another prime (135044542351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67522271180 + 67522271181.

It is an arithmetic number, because the mean of its divisors is an integer number (67522271181).

Almost surely, 2^135044542361 is an apocalyptic number.

It is an amenable number.

135044542361 is a deficient number, since it is larger than the sum of its proper divisors (1).

135044542361 is an equidigital number, since it uses as much as digits as its factorization.

135044542361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 135044542361 its reverse (163245440531), we get a palindrome (298289982892).

The spelling of 135044542361 in words is "one hundred thirty-five billion, forty-four million, five hundred forty-two thousand, three hundred sixty-one".