121355064 has 32 divisors (see below), whose sum is σ = 337098000. Its totient is φ = 40451616.

The previous prime is 121355063. The next prime is 121355083. The reversal of 121355064 is 460553121.

121355064 is a `hidden beast` number, since 121 + 35 + 506 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121355063) 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, 280699 + ... + 281130.

Almost surely, 2^121355064 is an apocalyptic number.

It is an amenable number.

121355064 is an abundant number, since it is smaller than the sum of its proper divisors (215742936).

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

121355064 is a wasteful number, since it uses less digits than its factorization.

121355064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561844 (or 561834 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 121355064 is about 11016.1274502431. The cubic root of 121355064 is about 495.0920673561.

The spelling of 121355064 in words is "one hundred twenty-one million, three hundred fifty-five thousand, sixty-four".