121186867 has 2 divisors, whose sum is σ = 121186868. Its totient is φ = 121186866.

The previous prime is 121186859. The next prime is 121186907. The reversal of 121186867 is 768681121.

It is an a-pointer prime, because the next prime (121186907) can be obtained adding 121186867 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121186867 - 2³ = 121186859 is a prime.

It is not a weakly prime, because it can be changed into another prime (121186817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60593433 + 60593434.

It is an arithmetic number, because the mean of its divisors is an integer number (60593434).

Almost surely, 2^121186867 is an apocalyptic number.

121186867 is a deficient number, since it is larger than the sum of its proper divisors (1).

121186867 is an equidigital number, since it uses as much as digits as its factorization.

121186867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 40.

The square root of 121186867 is about 11008.4906776542. The cubic root of 121186867 is about 494.8632305878.

The spelling of 121186867 in words is "one hundred twenty-one million, one hundred eighty-six thousand, eight hundred sixty-seven".