135665456 has 20 divisors (see below), whose sum is σ = 264430992. Its totient is φ = 67425216.

The previous prime is 135665447. The next prime is 135665479. The reversal of 135665456 is 654566531.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22715 + ... + 28058.

Almost surely, 2^135665456 is an apocalyptic number.

135665456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

135665456 is a deficient number, since it is larger than the sum of its proper divisors (128765536).

135665456 is a wasteful number, since it uses less digits than its factorization.

135665456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50948 (or 50942 counting only the distinct ones).

The product of its digits is 324000, while the sum is 41.

The square root of 135665456 is about 11647.5515023545. The cubic root of 135665456 is about 513.8343018915.

The spelling of 135665456 in words is "one hundred thirty-five million, six hundred sixty-five thousand, four hundred fifty-six".