121653104 has 20 divisors (see below), whose sum is σ = 239024880. Its totient is φ = 59969280.

The previous prime is 121653101. The next prime is 121653157. The reversal of 121653104 is 401356121.

It is a self number, because there is not a number n which added to its sum of digits gives 121653104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121653101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52409 + ... + 54680.

It is an arithmetic number, because the mean of its divisors is an integer number (11951244).

Almost surely, 2^121653104 is an apocalyptic number.

It is an amenable number.

121653104 is a deficient number, since it is larger than the sum of its proper divisors (117371776).

121653104 is a wasteful number, since it uses less digits than its factorization.

121653104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107168 (or 107162 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 121653104 is about 11029.6465945197. The cubic root of 121653104 is about 495.4970404505.

The spelling of 121653104 in words is "one hundred twenty-one million, six hundred fifty-three thousand, one hundred four".