135661674 has 32 divisors (see below), whose sum is σ = 275756544. Its totient is φ = 44486640.

The previous prime is 135661663. The next prime is 135661679. The reversal of 135661674 is 476166531.

It is not an unprimeable number, because it can be changed into a prime (135661679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164427 + ... + 165249.

It is an arithmetic number, because the mean of its divisors is an integer number (8617392).

Almost surely, 2^135661674 is an apocalyptic number.

135661674 is an abundant number, since it is smaller than the sum of its proper divisors (140094870).

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

135661674 is a wasteful number, since it uses less digits than its factorization.

135661674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242.

The product of its digits is 90720, while the sum is 39.

The square root of 135661674 is about 11647.3891495047. The cubic root of 135661674 is about 513.8295270593.

The spelling of 135661674 in words is "one hundred thirty-five million, six hundred sixty-one thousand, six hundred seventy-four".