121468187 has 4 divisors (see below), whose sum is σ = 121952376. Its totient is φ = 120984000.

The previous prime is 121468181. The next prime is 121468229. The reversal of 121468187 is 781864121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 781864121 = 11383 ⋅68687.

It is a cyclic number.

It is not a de Polignac number, because 121468187 - 2¹⁶ = 121402651 is a prime.

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 121468187.

It is not an unprimeable number, because it can be changed into a prime (121468181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241718 + ... + 242219.

It is an arithmetic number, because the mean of its divisors is an integer number (30488094).

Almost surely, 2^121468187 is an apocalyptic number.

121468187 is a deficient number, since it is larger than the sum of its proper divisors (484189).

121468187 is an equidigital number, since it uses as much as digits as its factorization.

121468187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484188.

The product of its digits is 21504, while the sum is 38.

The square root of 121468187 is about 11021.2606810655. The cubic root of 121468187 is about 495.2458554902.

The spelling of 121468187 in words is "one hundred twenty-one million, four hundred sixty-eight thousand, one hundred eighty-seven".