135553441 has 2 divisors, whose sum is σ = 135553442. Its totient is φ = 135553440.

The previous prime is 135553409. The next prime is 135553447. The reversal of 135553441 is 144355531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100400400 + 35153041 = 10020^2 + 5929^2 .

It is a cyclic number.

It is not a de Polignac number, because 135553441 - 2⁵ = 135553409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135553447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67776720 + 67776721.

It is an arithmetic number, because the mean of its divisors is an integer number (67776721).

Almost surely, 2^135553441 is an apocalyptic number.

It is an amenable number.

135553441 is a deficient number, since it is larger than the sum of its proper divisors (1).

135553441 is an equidigital number, since it uses as much as digits as its factorization.

135553441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 31.

The square root of 135553441 is about 11642.7419880370. The cubic root of 135553441 is about 513.6928436324.

The spelling of 135553441 in words is "one hundred thirty-five million, five hundred fifty-three thousand, four hundred forty-one".