135420446 has 16 divisors (see below), whose sum is σ = 232520544. Its totient is φ = 57944544.

The previous prime is 135420413. The next prime is 135420449. The reversal of 135420446 is 644024531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135420449) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1736 + ... + 16548.

It is an arithmetic number, because the mean of its divisors is an integer number (14532534).

Almost surely, 2^135420446 is an apocalyptic number.

135420446 is a deficient number, since it is larger than the sum of its proper divisors (97100098).

135420446 is a wasteful number, since it uses less digits than its factorization.

135420446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15475.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 135420446 is about 11637.0290882166. The cubic root of 135420446 is about 513.5247895315.

Adding to 135420446 its reverse (644024531), we get a palindrome (779444977).

The spelling of 135420446 in words is "one hundred thirty-five million, four hundred twenty thousand, four hundred forty-six".