133012040 has 96 divisors (see below), whose sum is σ = 352537920. Its totient is φ = 44243712.

The previous prime is 133012031. The next prime is 133012043. The reversal of 133012040 is 40210331.

133012040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (133012043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 383147 + ... + 383493.

It is an arithmetic number, because the mean of its divisors is an integer number (3672270).

Almost surely, 2^133012040 is an apocalyptic number.

133012040 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 133012040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176268960).

133012040 is an abundant number, since it is smaller than the sum of its proper divisors (219525880).

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

133012040 is a wasteful number, since it uses less digits than its factorization.

133012040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 133012040 is about 11533.0845830593. The cubic root of 133012040 is about 510.4622746936.

Adding to 133012040 its reverse (40210331), we get a palindrome (173222371).

The spelling of 133012040 in words is "one hundred thirty-three million, twelve thousand, forty".