133559040 has 72 divisors (see below), whose sum is σ = 426566448. Its totient is φ = 35614720.

The previous prime is 133559039. The next prime is 133559081. The reversal of 133559040 is 40955331.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 133558989 and 133559007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13551 + ... + 21230.

It is an arithmetic number, because the mean of its divisors is an integer number (5924534).

Almost surely, 2^133559040 is an apocalyptic number.

133559040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133559040 is an abundant number, since it is smaller than the sum of its proper divisors (293007408).

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

133559040 is an equidigital number, since it uses as much as digits as its factorization.

133559040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34805 (or 34791 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 133559040 is about 11556.7746365498. The cubic root of 133559040 is about 511.1610610009.

The spelling of 133559040 in words is "one hundred thirty-three million, five hundred fifty-nine thousand, forty".