135574668 has 24 divisors (see below), whose sum is σ = 351490160. Its totient is φ = 45191520.

The previous prime is 135574661. The next prime is 135574721. The reversal of 135574668 is 866475531.

135574668 is a `hidden beast` number, since 13 + 5 + 574 + 6 + 68 = 666.

It is not an unprimeable number, because it can be changed into a prime (135574661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627553 + ... + 627768.

Almost surely, 2^135574668 is an apocalyptic number.

135574668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

135574668 is an abundant number, since it is smaller than the sum of its proper divisors (215915492).

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

135574668 is a wasteful number, since it uses less digits than its factorization.

135574668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255334 (or 1255326 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 135574668 is about 11643.6535503252. The cubic root of 135574668 is about 513.7196561544.

It can be divided in two parts, 13557 and 4668, that added together give a square (18225 = 135²).

The spelling of 135574668 in words is "one hundred thirty-five million, five hundred seventy-four thousand, six hundred sixty-eight".