135425240 has 32 divisors (see below), whose sum is σ = 305214480. Its totient is φ = 54079872.

The previous prime is 135425231. The next prime is 135425263. The reversal of 135425240 is 42524531.

It is a happy number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 24842 + ... + 29798.

Almost surely, 2^135425240 is an apocalyptic number.

135425240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135425240 is an abundant number, since it is smaller than the sum of its proper divisors (169789240).

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

135425240 is a wasteful number, since it uses less digits than its factorization.

135425240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5651 (or 5647 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 135425240 is about 11637.2350668017. The cubic root of 135425240 is about 513.5308491994.

Adding to 135425240 its reverse (42524531), we get a palindrome (177949771).

The spelling of 135425240 in words is "one hundred thirty-five million, four hundred twenty-five thousand, two hundred forty".