133333330 has 16 divisors (see below), whose sum is σ = 258461784. Its totient is φ = 49230720.

The previous prime is 133333327. The next prime is 133333357. The reversal of 133333330 is 33333331.

It can be written as a sum of positive squares in 4 ways, for example, as 48121969 + 85211361 = 6937^2 + 9231^2 .

It is a super-4 number, since 4×133333330⁴ (a number of 34 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512691 + ... + 512950.

Almost surely, 2^133333330 is an apocalyptic number.

133333330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133333330 is a deficient number, since it is larger than the sum of its proper divisors (125128454).

133333330 is a wasteful number, since it uses less digits than its factorization.

133333330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025661.

The product of its (nonzero) digits is 2187, while the sum is 22.

The square root of 133333330 is about 11547.0052394549. The cubic root of 133333330 is about 510.8729506718.

Adding to 133333330 its reverse (33333331), we get a palindrome (166666661).

Subtracting from 133333330 its reverse (33333331), we obtain a palindrome (99999999).

The spelling of 133333330 in words is "one hundred thirty-three million, three hundred thirty-three thousand, three hundred thirty".