135531078940 has 48 divisors (see below), whose sum is σ = 286162740864. Its totient is φ = 53917875200.

The previous prime is 135531078937. The next prime is 135531078941. The reversal of 135531078940 is 49870135531.

It is a happy number.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135531078941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16705485 + ... + 16713595.

It is an arithmetic number, because the mean of its divisors is an integer number (5961723768).

Almost surely, 2^135531078940 is an apocalyptic number.

135531078940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135531078940 is an abundant number, since it is smaller than the sum of its proper divisors (150631661924).

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

135531078940 is a wasteful number, since it uses less digits than its factorization.

135531078940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12558 (or 12556 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 135531078940 in words is "one hundred thirty-five billion, five hundred thirty-one million, seventy-eight thousand, nine hundred forty".