135531041 has 2 divisors, whose sum is σ = 135531042. Its totient is φ = 135531040.

The previous prime is 135531029. The next prime is 135531043. The reversal of 135531041 is 140135531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131767441 + 3763600 = 11479^2 + 1940^2 .

It is a cyclic number.

It is not a de Polignac number, because 135531041 - 2¹⁴ = 135514657 is a prime.

Together with 135531043, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 135530998 and 135531016.

It is not a weakly prime, because it can be changed into another prime (135531043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67765520 + 67765521.

It is an arithmetic number, because the mean of its divisors is an integer number (67765521).

Almost surely, 2^135531041 is an apocalyptic number.

It is an amenable number.

135531041 is a deficient number, since it is larger than the sum of its proper divisors (1).

135531041 is an equidigital number, since it uses as much as digits as its factorization.

135531041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 135531041 is about 11641.7799755879. The cubic root of 135531041 is about 513.6645464199.

Adding to 135531041 its reverse (140135531), we get a palindrome (275666572).

The spelling of 135531041 in words is "one hundred thirty-five million, five hundred thirty-one thousand, forty-one".