135673408 has 56 divisors (see below), whose sum is σ = 291876480. Its totient is φ = 62200320.

The previous prime is 135673399. The next prime is 135673411. The reversal of 135673408 is 804376531.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148473 + ... + 149383.

It is an arithmetic number, because the mean of its divisors is an integer number (5212080).

Almost surely, 2^135673408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135673408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145938240).

135673408 is an abundant number, since it is smaller than the sum of its proper divisors (156203072).

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

135673408 is a wasteful number, since it uses less digits than its factorization.

135673408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115 (or 1105 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 135673408 is about 11647.8928566501. The cubic root of 135673408 is about 513.8443411225.

The spelling of 135673408 in words is "one hundred thirty-five million, six hundred seventy-three thousand, four hundred eight".