133120550 has 24 divisors (see below), whose sum is σ = 258371856. Its totient is φ = 50932640.

The previous prime is 133120531. The next prime is 133120597. The reversal of 133120550 is 55021331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56729 + ... + 59028.

It is an arithmetic number, because the mean of its divisors is an integer number (10765494).

Almost surely, 2^133120550 is an apocalyptic number.

133120550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133120550 is a deficient number, since it is larger than the sum of its proper divisors (125251306).

133120550 is a wasteful number, since it uses less digits than its factorization.

133120550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115792 (or 115787 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 133120550 is about 11537.7879162342. The cubic root of 133120550 is about 510.6010471084.

Adding to 133120550 its reverse (55021331), we get a palindrome (188141881).

The spelling of 133120550 in words is "one hundred thirty-three million, one hundred twenty thousand, five hundred fifty".