133020030 has 128 divisors (see below), whose sum is σ = 380007936. Its totient is φ = 29376000.

The previous prime is 133020001. The next prime is 133020037. The reversal of 133020030 is 30020331.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 133019988 and 133020015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133020037) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 433137 + ... + 433443.

It is an arithmetic number, because the mean of its divisors is an integer number (2968812).

Almost surely, 2^133020030 is an apocalyptic number.

133020030 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 133020030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190003968).

133020030 is an abundant number, since it is smaller than the sum of its proper divisors (246987906).

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

133020030 is a wasteful number, since it uses less digits than its factorization.

133020030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 133020030 is about 11533.4309726117. The cubic root of 133020030 is about 510.4724956027.

Adding to 133020030 its reverse (30020331), we get a palindrome (163040361).

The spelling of 133020030 in words is "one hundred thirty-three million, twenty thousand, thirty".