133053440 has 88 divisors (see below), whose sum is σ = 343896000. Its totient is φ = 49102848.

The previous prime is 133053439. The next prime is 133053463. The reversal of 133053440 is 44350331.

It is a congruent number.

It is an unprimeable number.

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, 65561 + ... + 67559.

Almost surely, 2^133053440 is an apocalyptic number.

133053440 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 133053440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171948000).

133053440 is an abundant number, since it is smaller than the sum of its proper divisors (210842560).

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

133053440 is a wasteful number, since it uses less digits than its factorization.

133053440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037 (or 2019 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 133053440 is about 11534.8792798191. The cubic root of 133053440 is about 510.5152296642.

The spelling of 133053440 in words is "one hundred thirty-three million, fifty-three thousand, four hundred forty".