133665414 has 16 divisors (see below), whose sum is σ = 273548352. Its totient is φ = 43518888.

The previous prime is 133665401. The next prime is 133665419. The reversal of 133665414 is 414566331.

133665414 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133665419) 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, 258784 + ... + 259299.

It is an arithmetic number, because the mean of its divisors is an integer number (17096772).

Almost surely, 2^133665414 is an apocalyptic number.

133665414 is an abundant number, since it is smaller than the sum of its proper divisors (139882938).

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

133665414 is a wasteful number, since it uses less digits than its factorization.

133665414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518131.

The product of its digits is 25920, while the sum is 33.

The square root of 133665414 is about 11561.3759561741. The cubic root of 133665414 is about 511.2967308826.

The spelling of 133665414 in words is "one hundred thirty-three million, six hundred sixty-five thousand, four hundred fourteen".