133164424 has 8 divisors (see below), whose sum is σ = 249683310. Its totient is φ = 66582208.

The previous prime is 133164401. The next prime is 133164439. The reversal of 133164424 is 424461331.

It can be written as a sum of positive squares in only one way, i.e., 99640324 + 33524100 = 9982^2 + 5790^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 133164392 and 133164401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8322769 + ... + 8322784.

Almost surely, 2^133164424 is an apocalyptic number.

It is an amenable number.

133164424 is a deficient number, since it is larger than the sum of its proper divisors (116518886).

133164424 is a wasteful number, since it uses less digits than its factorization.

133164424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16645559 (or 16645555 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 133164424 is about 11539.6890772672. The cubic root of 133164424 is about 510.6571357431.

The spelling of 133164424 in words is "one hundred thirty-three million, one hundred sixty-four thousand, four hundred twenty-four".