135522461 has 2 divisors, whose sum is σ = 135522462. Its totient is φ = 135522460.

The previous prime is 135522449. The next prime is 135522473. The reversal of 135522461 is 164225531.

It is a balanced prime because it is at equal distance from previous prime (135522449) and next prime (135522473).

It can be written as a sum of positive squares in only one way, i.e., 117722500 + 17799961 = 10850^2 + 4219^2 .

It is a cyclic number.

It is not a de Polignac number, because 135522461 - 2⁶ = 135522397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135522061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67761230 + 67761231.

It is an arithmetic number, because the mean of its divisors is an integer number (67761231).

Almost surely, 2^135522461 is an apocalyptic number.

It is an amenable number.

135522461 is a deficient number, since it is larger than the sum of its proper divisors (1).

135522461 is an equidigital number, since it uses as much as digits as its factorization.

135522461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 29.

The square root of 135522461 is about 11641.4114694052. The cubic root of 135522461 is about 513.6537067511.

Adding to 135522461 its reverse (164225531), we get a palindrome (299747992).

The spelling of 135522461 in words is "one hundred thirty-five million, five hundred twenty-two thousand, four hundred sixty-one".