133436814 has 16 divisors (see below), whose sum is σ = 304998528. Its totient is φ = 38124792.

The previous prime is 133436813. The next prime is 133436833. The reversal of 133436814 is 418634331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133436813) 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, 1588492 + ... + 1588575.

It is an arithmetic number, because the mean of its divisors is an integer number (19062408).

Almost surely, 2^133436814 is an apocalyptic number.

133436814 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

133436814 is an abundant number, since it is smaller than the sum of its proper divisors (171561714).

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

133436814 is a wasteful number, since it uses less digits than its factorization.

133436814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3177079.

The product of its digits is 20736, while the sum is 33.

The square root of 133436814 is about 11551.4853590350. The cubic root of 133436814 is about 511.0050844377.

The spelling of 133436814 in words is "one hundred thirty-three million, four hundred thirty-six thousand, eight hundred fourteen".