121604164 has 24 divisors (see below), whose sum is σ = 232848000. Its totient is φ = 55109280.

The previous prime is 121604149. The next prime is 121604167. The reversal of 121604164 is 461406121.

It is not an unprimeable number, because it can be changed into a prime (121604167) by changing a digit.

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, 11397 + ... + 19315.

It is an arithmetic number, because the mean of its divisors is an integer number (9702000).

Almost surely, 2^121604164 is an apocalyptic number.

It is an amenable number.

121604164 is a deficient number, since it is larger than the sum of its proper divisors (111243836).

121604164 is a wasteful number, since it uses less digits than its factorization.

121604164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8283 (or 8281 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 121604164 is about 11027.4278052500. The cubic root of 121604164 is about 495.4305868024.

The spelling of 121604164 in words is "one hundred twenty-one million, six hundred four thousand, one hundred sixty-four".