135723826 has 12 divisors (see below), whose sum is σ = 236824398. Its totient is φ = 58167312.

The previous prime is 135723811. The next prime is 135723853. The reversal of 135723826 is 628327531.

135723826 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 100902025 + 34821801 = 10045^2 + 5901^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 692371 + ... + 692566.

Almost surely, 2^135723826 is an apocalyptic number.

135723826 is a deficient number, since it is larger than the sum of its proper divisors (101100572).

135723826 is a wasteful number, since it uses less digits than its factorization.

135723826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384953 (or 1384946 counting only the distinct ones).

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

The square root of 135723826 is about 11650.0569097322. The cubic root of 135723826 is about 513.9079836493.

The spelling of 135723826 in words is "one hundred thirty-five million, seven hundred twenty-three thousand, eight hundred twenty-six".