135242404 has 48 divisors (see below), whose sum is σ = 263672640. Its totient is φ = 60186240.

The previous prime is 135242389. The next prime is 135242411. The reversal of 135242404 is 404242531.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 781662 + ... + 781834.

It is an arithmetic number, because the mean of its divisors is an integer number (5493180).

Almost surely, 2^135242404 is an apocalyptic number.

It is an amenable number.

135242404 is a deficient number, since it is larger than the sum of its proper divisors (128430236).

135242404 is a wasteful number, since it uses less digits than its factorization.

135242404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 135242404 is about 11629.3767674798. The cubic root of 135242404 is about 513.2996411612.

Adding to 135242404 its reverse (404242531), we get a palindrome (539484935).

The spelling of 135242404 in words is "one hundred thirty-five million, two hundred forty-two thousand, four hundred four".