135320540 has 12 divisors (see below), whose sum is σ = 284173176. Its totient is φ = 54128208.

The previous prime is 135320539. The next prime is 135320543. The reversal of 135320540 is 45023531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135320543) 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, 3382994 + ... + 3383033.

It is an arithmetic number, because the mean of its divisors is an integer number (23681098).

Almost surely, 2^135320540 is an apocalyptic number.

135320540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135320540 is an abundant number, since it is smaller than the sum of its proper divisors (148852636).

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

135320540 is a wasteful number, since it uses less digits than its factorization.

135320540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6766036 (or 6766034 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 135320540 is about 11632.7357057573. The cubic root of 135320540 is about 513.3984747077.

The spelling of 135320540 in words is "one hundred thirty-five million, three hundred twenty thousand, five hundred forty".