121342085 has 4 divisors (see below), whose sum is σ = 145610508. Its totient is φ = 97073664.

The previous prime is 121342079. The next prime is 121342093. The reversal of 121342085 is 580243121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72216004 + 49126081 = 8498^2 + 7009^2 .

It is a cyclic number.

It is not a de Polignac number, because 121342085 - 2¹⁸ = 121079941 is a prime.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 12134204 + ... + 12134213.

It is an arithmetic number, because the mean of its divisors is an integer number (36402627).

Almost surely, 2^121342085 is an apocalyptic number.

It is an amenable number.

121342085 is a deficient number, since it is larger than the sum of its proper divisors (24268423).

121342085 is an equidigital number, since it uses as much as digits as its factorization.

121342085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24268422.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 121342085 is about 11015.5383436308. The cubic root of 121342085 is about 495.0744165914.

The spelling of 121342085 in words is "one hundred twenty-one million, three hundred forty-two thousand, eighty-five".