121375585 has 8 divisors (see below), whose sum is σ = 150673320. Its totient is φ = 93752064.

The previous prime is 121375559. The next prime is 121375603. The reversal of 121375585 is 585573121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 44076321 + 77299264 = 6639^2 + 8792^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 121375585 - 2⁹ = 121375073 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418392 + ... + 418681.

It is an arithmetic number, because the mean of its divisors is an integer number (18834165).

Almost surely, 2^121375585 is an apocalyptic number.

It is an amenable number.

121375585 is a deficient number, since it is larger than the sum of its proper divisors (29297735).

121375585 is an equidigital number, since it uses as much as digits as its factorization.

121375585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837107.

The product of its digits is 42000, while the sum is 37.

The square root of 121375585 is about 11017.0588180331. The cubic root of 121375585 is about 495.1199722806.

The spelling of 121375585 in words is "one hundred twenty-one million, three hundred seventy-five thousand, five hundred eighty-five".