133120340 has 24 divisors (see below), whose sum is σ = 279831552. Its totient is φ = 53195040.

The previous prime is 133120333. The next prime is 133120367. The reversal of 133120340 is 43021331.

It is a happy number.

It is a congruent number.

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, 21917 + ... + 27323.

It is an arithmetic number, because the mean of its divisors is an integer number (11659648).

Almost surely, 2^133120340 is an apocalyptic number.

133120340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133120340 is an abundant number, since it is smaller than the sum of its proper divisors (146711212).

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

133120340 is a wasteful number, since it uses less digits than its factorization.

133120340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6647 (or 6645 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 133120340 is about 11537.7788156993. The cubic root of 133120340 is about 510.6007786142.

Adding to 133120340 its reverse (43021331), we get a palindrome (176141671).

Subtracting from 133120340 its reverse (43021331), we obtain a palindrome (90099009).

The spelling of 133120340 in words is "one hundred thirty-three million, one hundred twenty thousand, three hundred forty".