121868195 has 16 divisors (see below), whose sum is σ = 153867168. Its totient is φ = 92540160.

The previous prime is 121868183. The next prime is 121868203. The reversal of 121868195 is 591868121.

It is not a de Polignac number, because 121868195 - 2¹⁴ = 121851811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449 + ... + 15618.

It is an arithmetic number, because the mean of its divisors is an integer number (9616698).

Almost surely, 2^121868195 is an apocalyptic number.

121868195 is a deficient number, since it is larger than the sum of its proper divisors (31998973).

121868195 is a wasteful number, since it uses less digits than its factorization.

121868195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16150.

The product of its digits is 34560, while the sum is 41.

The square root of 121868195 is about 11039.3928727988. The cubic root of 121868195 is about 495.7888927208.

The spelling of 121868195 in words is "one hundred twenty-one million, eight hundred sixty-eight thousand, one hundred ninety-five".