133395640 has 48 divisors (see below), whose sum is σ = 349147800. Its totient is φ = 45734976.

The previous prime is 133395623. The next prime is 133395641. The reversal of 133395640 is 46593331.

It is a junction number, because it is equal to n+sod(n) for n = 133395596 and 133395605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133395641) 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 11 ways as a sum of consecutive naturals, for example, 32070 + ... + 35989.

Almost surely, 2^133395640 is an apocalyptic number.

133395640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133395640 is an abundant number, since it is smaller than the sum of its proper divisors (215752160).

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

133395640 is a wasteful number, since it uses less digits than its factorization.

133395640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68084 (or 68073 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 34.

The square root of 133395640 is about 11549.7030264851. The cubic root of 133395640 is about 510.9525195141.

The spelling of 133395640 in words is "one hundred thirty-three million, three hundred ninety-five thousand, six hundred forty".