133262240 has 24 divisors (see below), whose sum is σ = 314832420. Its totient is φ = 53304832.

The previous prime is 133262237. The next prime is 133262267. The reversal of 133262240 is 42262331.

133262240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 114147856 + 19114384 = 10684^2 + 4372^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416285 + ... + 416604.

Almost surely, 2^133262240 is an apocalyptic number.

133262240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133262240 is an abundant number, since it is smaller than the sum of its proper divisors (181570180).

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

133262240 is an equidigital number, since it uses as much as digits as its factorization.

133262240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832904 (or 832896 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 133262240 is about 11543.9265416928. The cubic root of 133262240 is about 510.7821396330.

Subtracting from 133262240 its reverse (42262331), we obtain a palindrome (90999909).

The spelling of 133262240 in words is "one hundred thirty-three million, two hundred sixty-two thousand, two hundred forty".