133003220 has 24 divisors (see below), whose sum is σ = 319208064. Its totient is φ = 45601056.

The previous prime is 133003207. The next prime is 133003231. The reversal of 133003220 is 22300331.

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

It is a junction number, because it is equal to n+sod(n) for n = 133003195 and 133003204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474872 + ... + 475151.

It is an arithmetic number, because the mean of its divisors is an integer number (13300336).

Almost surely, 2^133003220 is an apocalyptic number.

133003220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133003220 is an abundant number, since it is smaller than the sum of its proper divisors (186204844).

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

133003220 is a wasteful number, since it uses less digits than its factorization.

133003220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950039 (or 950037 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 133003220 is about 11532.7021985309. The cubic root of 133003220 is about 510.4509915627.

Adding to 133003220 its reverse (22300331), we get a palindrome (155303551).

The spelling of 133003220 in words is "one hundred thirty-three million, three thousand, two hundred twenty".