135040477 has 18 divisors (see below), whose sum is σ = 160398266. Its totient is φ = 112933920.

The previous prime is 135040471. The next prime is 135040481. The reversal of 135040477 is 774040531.

It can be written as a sum of positive squares in 3 ways, for example, as 62552281 + 72488196 = 7909^2 + 8514^2 .

It is a de Polignac number, because none of the positive numbers 2^k-135040477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135040471) 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 17 ways as a sum of consecutive naturals, for example, 460743 + ... + 461035.

Almost surely, 2^135040477 is an apocalyptic number.

It is an amenable number.

135040477 is a deficient number, since it is larger than the sum of its proper divisors (25357789).

135040477 is an equidigital number, since it uses as much as digits as its factorization.

135040477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 135040477 is about 11620.6917608204. The cubic root of 135040477 is about 513.0440490252.

The spelling of 135040477 in words is "one hundred thirty-five million, forty thousand, four hundred seventy-seven".