121869995 has 8 divisors (see below), whose sum is σ = 157493616. Its totient is φ = 89996256.

The previous prime is 121869967. The next prime is 121869997. The reversal of 121869995 is 599968121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121869995 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121869997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 937397 + ... + 937526.

It is an arithmetic number, because the mean of its divisors is an integer number (19686702).

Almost surely, 2^121869995 is an apocalyptic number.

121869995 is a deficient number, since it is larger than the sum of its proper divisors (35623621).

121869995 is a wasteful number, since it uses less digits than its factorization.

121869995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874941.

The product of its digits is 349920, while the sum is 50.

The square root of 121869995 is about 11039.4743987203. The cubic root of 121869995 is about 495.7913336519.

The spelling of 121869995 in words is "one hundred twenty-one million, eight hundred sixty-nine thousand, nine hundred ninety-five".