135679340 has 36 divisors (see below), whose sum is σ = 288844416. Its totient is φ = 53535456.

The previous prime is 135679339. The next prime is 135679387. The reversal of 135679340 is 43976531.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 135679294 and 135679303.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124277 + ... + 125363.

It is an arithmetic number, because the mean of its divisors is an integer number (8023456).

Almost surely, 2^135679340 is an apocalyptic number.

135679340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135679340 is an abundant number, since it is smaller than the sum of its proper divisors (153165076).

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

135679340 is a wasteful number, since it uses less digits than its factorization.

135679340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254 (or 1173 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 135679340 is about 11648.1474921981. The cubic root of 135679340 is about 513.8518298909.

The spelling of 135679340 in words is "one hundred thirty-five million, six hundred seventy-nine thousand, three hundred forty".