133436712 has 32 divisors (see below), whose sum is σ = 334663200. Its totient is φ = 44336064.

The previous prime is 133436711. The next prime is 133436747. The reversal of 133436712 is 217634331.

It is a super-2 number, since 2×133436712² = 35610712218741888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133436712.

It is not an unprimeable number, because it can be changed into a prime (133436711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1162 + ... + 16377.

It is an arithmetic number, because the mean of its divisors is an integer number (10458225).

Almost surely, 2^133436712 is an apocalyptic number.

133436712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133436712 is an abundant number, since it is smaller than the sum of its proper divisors (201226488).

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

133436712 is a wasteful number, since it uses less digits than its factorization.

133436712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17865 (or 17861 counting only the distinct ones).

The product of its digits is 9072, while the sum is 30.

The square root of 133436712 is about 11551.4809440175. The cubic root of 133436712 is about 511.0049542324.

The spelling of 133436712 in words is "one hundred thirty-three million, four hundred thirty-six thousand, seven hundred twelve".