135393390 has 64 divisors (see below), whose sum is σ = 393880320. Its totient is φ = 32821920.

The previous prime is 135393371. The next prime is 135393403. The reversal of 135393390 is 93393531.

135393390 is a `hidden beast` number, since 1 + 3 + 539 + 33 + 90 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19824 + ... + 25763.

It is an arithmetic number, because the mean of its divisors is an integer number (6154380).

Almost surely, 2^135393390 is an apocalyptic number.

135393390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135393390 is an abundant number, since it is smaller than the sum of its proper divisors (258486930).

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

135393390 is a wasteful number, since it uses less digits than its factorization.

135393390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45614 (or 45608 counting only the distinct ones).

The product of its (nonzero) digits is 32805, while the sum is 36.

The square root of 135393390 is about 11635.8665341263. The cubic root of 135393390 is about 513.4905877731.

The spelling of 135393390 in words is "one hundred thirty-five million, three hundred ninety-three thousand, three hundred ninety".