133164121 has 16 divisors (see below), whose sum is σ = 139345920. Its totient is φ = 127175440.

The previous prime is 133164079. The next prime is 133164133. The reversal of 133164121 is 121461331.

It is a cyclic number.

It is not a de Polignac number, because 133164121 - 2⁷ = 133163993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133164092 and 133164101.

It is not an unprimeable number, because it can be changed into a prime (133164721) 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 15 ways as a sum of consecutive naturals, for example, 347496 + ... + 347878.

It is an arithmetic number, because the mean of its divisors is an integer number (8709120).

Almost surely, 2^133164121 is an apocalyptic number.

It is an amenable number.

133164121 is a deficient number, since it is larger than the sum of its proper divisors (6181799).

133164121 is an equidigital number, since it uses as much as digits as its factorization.

133164121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596.

The product of its digits is 432, while the sum is 22.

The square root of 133164121 is about 11539.6759486564. The cubic root of 133164121 is about 510.6567484294.

The spelling of 133164121 in words is "one hundred thirty-three million, one hundred sixty-four thousand, one hundred twenty-one".