133467640 has 32 divisors (see below), whose sum is σ = 300762000. Its totient is φ = 53305344.

The previous prime is 133467623. The next prime is 133467641. The reversal of 133467640 is 46764331.

133467640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×133467640² = 35627221854339200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133467596 and 133467605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133467641) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28591 + ... + 32929.

Almost surely, 2^133467640 is an apocalyptic number.

133467640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133467640 is an abundant number, since it is smaller than the sum of its proper divisors (167294360).

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

133467640 is a wasteful number, since it uses less digits than its factorization.

133467640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5119 (or 5115 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 133467640 is about 11552.8195692653. The cubic root of 133467640 is about 511.0444314750.

The spelling of 133467640 in words is "one hundred thirty-three million, four hundred sixty-seven thousand, six hundred forty".