135402432 has 112 divisors (see below), whose sum is σ = 397605504. Its totient is φ = 40320000.

The previous prime is 135402419. The next prime is 135402437. The reversal of 135402432 is 234204531.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135402437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128307 + ... + 129357.

Almost surely, 2^135402432 is an apocalyptic number.

135402432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135402432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198802752).

135402432 is an abundant number, since it is smaller than the sum of its proper divisors (262203072).

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

135402432 is a wasteful number, since it uses less digits than its factorization.

135402432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138 (or 1128 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 135402432 is about 11636.2550676753. The cubic root of 135402432 is about 513.5020183620.

Adding to 135402432 its reverse (234204531), we get a palindrome (369606963).

The spelling of 135402432 in words is "one hundred thirty-five million, four hundred two thousand, four hundred thirty-two".