135442464 has 24 divisors (see below), whose sum is σ = 355536720. Its totient is φ = 45147456.

The previous prime is 135442453. The next prime is 135442477. The reversal of 135442464 is 464244531.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×135442464² = 36689322108782592, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705334 + ... + 705525.

It is an arithmetic number, because the mean of its divisors is an integer number (14814030).

Almost surely, 2^135442464 is an apocalyptic number.

It is an amenable number.

135442464 is an abundant number, since it is smaller than the sum of its proper divisors (220094256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135442464 is a wasteful number, since it uses less digits than its factorization.

135442464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410872 (or 1410864 counting only the distinct ones).

The product of its digits is 46080, while the sum is 33.

The square root of 135442464 is about 11637.9750816025. The cubic root of 135442464 is about 513.5526193421.

Adding to 135442464 its reverse (464244531), we get a palindrome (599686995).

The spelling of 135442464 in words is "one hundred thirty-five million, four hundred forty-two thousand, four hundred sixty-four".