135401424 has 20 divisors (see below), whose sum is σ = 349787136. Its totient is φ = 45133792.

The previous prime is 135401423. The next prime is 135401471. The reversal of 135401424 is 424104531.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 135401394 and 135401403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135401423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1410384 + ... + 1410479.

Almost surely, 2^135401424 is an apocalyptic number.

It is an amenable number.

135401424 is an abundant number, since it is smaller than the sum of its proper divisors (214385712).

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

135401424 is a wasteful number, since it uses less digits than its factorization.

135401424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820874 (or 2820868 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 135401424 is about 11636.2117546906. The cubic root of 135401424 is about 513.5007441079.

Adding to 135401424 its reverse (424104531), we get a palindrome (559505955).

The spelling of 135401424 in words is "one hundred thirty-five million, four hundred one thousand, four hundred twenty-four".