133436406 has 32 divisors (see below), whose sum is σ = 275270400. Its totient is φ = 43100960.

The previous prime is 133436399. The next prime is 133436423. The reversal of 133436406 is 604634331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22480 + ... + 27788.

It is an arithmetic number, because the mean of its divisors is an integer number (8602200).

Almost surely, 2^133436406 is an apocalyptic number.

133436406 is an abundant number, since it is smaller than the sum of its proper divisors (141833994).

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

133436406 is a wasteful number, since it uses less digits than its factorization.

133436406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5444.

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 133436406 is about 11551.4676989550. The cubic root of 133436406 is about 511.0045636162.

The spelling of 133436406 in words is "one hundred thirty-three million, four hundred thirty-six thousand, four hundred six".