135091449 has 8 divisors (see below), whose sum is σ = 200135520. Its totient is φ = 90060948.

The previous prime is 135091447. The next prime is 135091457. The reversal of 135091449 is 944190531.

It is a happy number.

135091449 is a `hidden beast` number, since 1 + 3 + 509 + 144 + 9 = 666.

It is not a de Polignac number, because 135091449 - 2¹ = 135091447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135091441) 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 in 7 ways as a sum of consecutive naturals, for example, 2501667 + ... + 2501720.

It is an arithmetic number, because the mean of its divisors is an integer number (25016940).

Almost surely, 2^135091449 is an apocalyptic number.

It is an amenable number.

135091449 is a deficient number, since it is larger than the sum of its proper divisors (65044071).

135091449 is an equidigital number, since it uses as much as digits as its factorization.

135091449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003396 (or 5003390 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 135091449 is about 11622.8847107764. The cubic root of 135091449 is about 513.1085916282.

The spelling of 135091449 in words is "one hundred thirty-five million, ninety-one thousand, four hundred forty-nine".