133133300 has 18 divisors (see below), whose sum is σ = 288899478. Its totient is φ = 53253280.

The previous prime is 133133291. The next prime is 133133317. The reversal of 133133300 is 3331331.

It can be written as a sum of positive squares in 3 ways, for example, as 929296 + 132204004 = 964^2 + 11498^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 665567 + ... + 665766.

It is an arithmetic number, because the mean of its divisors is an integer number (16049971).

Almost surely, 2^133133300 is an apocalyptic number.

133133300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133133300 is an abundant number, since it is smaller than the sum of its proper divisors (155766178).

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

133133300 is a wasteful number, since it uses less digits than its factorization.

133133300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331347 (or 1331340 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 17.

The square root of 133133300 is about 11538.3404352619. The cubic root of 133133300 is about 510.6173480114.

Adding to 133133300 its reverse (3331331), we get a palindrome (136464631).

It can be divided in two parts, 13 and 3133300, that added together give a palindrome (3133313).

The spelling of 133133300 in words is "one hundred thirty-three million, one hundred thirty-three thousand, three hundred".