121088605 has 32 divisors (see below), whose sum is σ = 164269440. Its totient is φ = 84913920.

The previous prime is 121088587. The next prime is 121088651. The reversal of 121088605 is 506880121.

It is a de Polignac number, because none of the positive numbers 2^k-121088605 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 319306 + ... + 319684.

It is an arithmetic number, because the mean of its divisors is an integer number (5133420).

Almost surely, 2^121088605 is an apocalyptic number.

It is an amenable number.

121088605 is a deficient number, since it is larger than the sum of its proper divisors (43180835).

121088605 is a wasteful number, since it uses less digits than its factorization.

121088605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 121088605 is about 11004.0267629627. The cubic root of 121088605 is about 494.7294443659.

The spelling of 121088605 in words is "one hundred twenty-one million, eighty-eight thousand, six hundred five".