121604646 has 8 divisors (see below), whose sum is σ = 243209304. Its totient is φ = 40534880.

The previous prime is 121604597. The next prime is 121604653. The reversal of 121604646 is 646406121.

It is a sphenic number, since it is the product of 3 distinct primes.

121604646 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10133715 + ... + 10133726.

It is an arithmetic number, because the mean of its divisors is an integer number (30401163).

Almost surely, 2^121604646 is an apocalyptic number.

121604646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121604646 is a wasteful number, since it uses less digits than its factorization.

121604646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20267446.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 121604646 is about 11027.4496598262. The cubic root of 121604646 is about 495.4312413776.

The spelling of 121604646 in words is "one hundred twenty-one million, six hundred four thousand, six hundred forty-six".