133664234 has 24 divisors (see below), whose sum is σ = 232357248. Its totient is φ = 57179840.

The previous prime is 133664231. The next prime is 133664243. The reversal of 133664234 is 432466331.

It is a super-2 number, since 2×133664234² = 35732254901613512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133664234.

It is not an unprimeable number, because it can be changed into a prime (133664231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4154 + ... + 16869.

It is an arithmetic number, because the mean of its divisors is an integer number (9681552).

Almost surely, 2^133664234 is an apocalyptic number.

133664234 is a deficient number, since it is larger than the sum of its proper divisors (98693014).

133664234 is a wasteful number, since it uses less digits than its factorization.

133664234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21070 (or 21053 counting only the distinct ones).

The product of its digits is 31104, while the sum is 32.

The square root of 133664234 is about 11561.3249240734. The cubic root of 133664234 is about 511.2952263002.

The spelling of 133664234 in words is "one hundred thirty-three million, six hundred sixty-four thousand, two hundred thirty-four".