121887361 has 8 divisors (see below), whose sum is σ = 126172160. Its totient is φ = 117654768.

The previous prime is 121887343. The next prime is 121887407. The reversal of 121887361 is 163788121.

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 121887361 - 2¹⁷ = 121756289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121887361.

It is not an unprimeable number, because it can be changed into a prime (121887341) by changing a digit.

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, 8271 + ... + 17668.

It is an arithmetic number, because the mean of its divisors is an integer number (15771520).

Almost surely, 2^121887361 is an apocalyptic number.

It is an amenable number.

121887361 is a deficient number, since it is larger than the sum of its proper divisors (4284799).

121887361 is a wasteful number, since it uses less digits than its factorization.

121887361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26103.

The product of its digits is 16128, while the sum is 37.

The square root of 121887361 is about 11040.2609117720. The cubic root of 121887361 is about 495.8148819786.

The spelling of 121887361 in words is "one hundred twenty-one million, eight hundred eighty-seven thousand, three hundred sixty-one".