133120650 has 96 divisors (see below), whose sum is σ = 374351040. Its totient is φ = 31034880.

The previous prime is 133120639. The next prime is 133120657. The reversal of 133120650 is 56021331.

It is a super-2 number, since 2×133120650² = 35442214912845000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133120657) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35254 + ... + 38846.

It is an arithmetic number, because the mean of its divisors is an integer number (3899490).

Almost surely, 2^133120650 is an apocalyptic number.

133120650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 133120650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187175520).

133120650 is an abundant number, since it is smaller than the sum of its proper divisors (241230390).

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

133120650 is a wasteful number, since it uses less digits than its factorization.

133120650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640 (or 3635 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 133120650 is about 11537.7922498197. The cubic root of 133120650 is about 510.6011749627.

Adding to 133120650 its reverse (56021331), we get a palindrome (189141981).

The spelling of 133120650 in words is "one hundred thirty-three million, one hundred twenty thousand, six hundred fifty".