133233030 has 96 divisors (see below), whose sum is σ = 401454144. Its totient is φ = 30025728.

The previous prime is 133233017. The next prime is 133233031. The reversal of 133233030 is 30332331.

133233030 is a `hidden beast` number, since 1 + 332 + 330 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 133232994 and 133233012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133233031) 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, 44542 + ... + 47438.

It is an arithmetic number, because the mean of its divisors is an integer number (4181814).

Almost surely, 2^133233030 is an apocalyptic number.

133233030 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 133233030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200727072).

133233030 is an abundant number, since it is smaller than the sum of its proper divisors (268221114).

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

133233030 is a wasteful number, since it uses less digits than its factorization.

133233030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2990 (or 2987 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 18.

The square root of 133233030 is about 11542.6613049158. The cubic root of 133233030 is about 510.7448171413.

Adding to 133233030 its reverse (30332331), we get a palindrome (163565361).

The spelling of 133233030 in words is "one hundred thirty-three million, two hundred thirty-three thousand, thirty".