121528164 has 24 divisors (see below), whose sum is σ = 283989888. Its totient is φ = 40448800.

The previous prime is 121528163. The next prime is 121528171. The reversal of 121528164 is 461825121.

It is not an unprimeable number, because it can be changed into a prime (121528163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1189 + ... + 15635.

It is an arithmetic number, because the mean of its divisors is an integer number (11832912).

Almost surely, 2^121528164 is an apocalyptic number.

It is an amenable number.

121528164 is an abundant number, since it is smaller than the sum of its proper divisors (162461724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121528164 is a wasteful number, since it uses less digits than its factorization.

121528164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15155 (or 15153 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 121528164 is about 11023.9813134820. The cubic root of 121528164 is about 495.3273541220.

The spelling of 121528164 in words is "one hundred twenty-one million, five hundred twenty-eight thousand, one hundred sixty-four".