133485530 has 32 divisors (see below), whose sum is σ = 255313296. Its totient is φ = 50074624.

The previous prime is 133485523. The next prime is 133485551. The reversal of 133485530 is 35584331.

133485530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 41306329 + 92179201 = 6427^2 + 9601^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52652 + ... + 55128.

Almost surely, 2^133485530 is an apocalyptic number.

133485530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133485530 is a deficient number, since it is larger than the sum of its proper divisors (121827766).

133485530 is a wasteful number, since it uses less digits than its factorization.

133485530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 133485530 is about 11553.5938131821. The cubic root of 133485530 is about 511.0672639169.

The spelling of 133485530 in words is "one hundred thirty-three million, four hundred eighty-five thousand, five hundred thirty".