135542333440 has 56 divisors (see below), whose sum is σ = 325281843720. Its totient is φ = 54216916992.

The previous prime is 135542333393. The next prime is 135542333441. The reversal of 135542333440 is 44333245531.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 135542333440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135542333441) 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, 1613610 + ... + 1695529.

Almost surely, 2^135542333440 is an apocalyptic number.

135542333440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135542333440 is an abundant number, since it is smaller than the sum of its proper divisors (189739510280).

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

135542333440 is an frugal number, since it uses more digits than its factorization.

135542333440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309170 (or 3309146 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 37.

Adding to 135542333440 its reverse (44333245531), we get a palindrome (179875578971).

The spelling of 135542333440 in words is "one hundred thirty-five billion, five hundred forty-two million, three hundred thirty-three thousand, four hundred forty".