133455040 has 56 divisors (see below), whose sum is σ = 320954400. Its totient is φ = 52850688.

The previous prime is 133455011. The next prime is 133455097. The reversal of 133455040 is 40554331.

It is a junction number, because it is equal to n+sod(n) for n = 133454996 and 133455014.

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, 30936 + ... + 34984.

Almost surely, 2^133455040 is an apocalyptic number.

133455040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133455040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160477200).

133455040 is an abundant number, since it is smaller than the sum of its proper divisors (187499360).

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

133455040 is a wasteful number, since it uses less digits than its factorization.

133455040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4169 (or 4159 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 133455040 is about 11552.2742349721. The cubic root of 133455040 is about 511.0283492684.

The spelling of 133455040 in words is "one hundred thirty-three million, four hundred fifty-five thousand, forty".