133730190 has 96 divisors (see below), whose sum is σ = 393434496. Its totient is φ = 32412960.

The previous prime is 133730159. The next prime is 133730197. The reversal of 133730190 is 91037331.

It is a super-2 number, since 2×133730190² = 35767527434872200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133730197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24229 + ... + 29231.

It is an arithmetic number, because the mean of its divisors is an integer number (4098276).

Almost surely, 2^133730190 is an apocalyptic number.

133730190 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 133730190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196717248).

133730190 is an abundant number, since it is smaller than the sum of its proper divisors (259704306).

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

133730190 is a wasteful number, since it uses less digits than its factorization.

133730190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036 (or 5024 counting only the distinct ones).

The product of its (nonzero) digits is 1701, while the sum is 27.

The square root of 133730190 is about 11564.1770135189. The cubic root of 133730190 is about 511.3793112286.

The spelling of 133730190 in words is "one hundred thirty-three million, seven hundred thirty thousand, one hundred ninety".