135673734 has 32 divisors (see below), whose sum is σ = 323596800. Its totient is φ = 37078272.

The previous prime is 135673723. The next prime is 135673751. The reversal of 135673734 is 437376531.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 135673692 and 135673701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69259 + ... + 71190.

It is an arithmetic number, because the mean of its divisors is an integer number (10112400).

Almost surely, 2^135673734 is an apocalyptic number.

135673734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

135673734 is an abundant number, since it is smaller than the sum of its proper divisors (187923066).

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

135673734 is a wasteful number, since it uses less digits than its factorization.

135673734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140484.

The product of its digits is 158760, while the sum is 39.

The square root of 135673734 is about 11647.9068505891. The cubic root of 135673734 is about 513.8447526822.

The spelling of 135673734 in words is "one hundred thirty-five million, six hundred seventy-three thousand, seven hundred thirty-four".