121214579 has 2 divisors, whose sum is σ = 121214580. Its totient is φ = 121214578.

The previous prime is 121214563. The next prime is 121214593. The reversal of 121214579 is 975412121.

It is a strong prime.

It is an emirp because it is prime and its reverse (975412121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121214579 - 2⁴ = 121214563 is a prime.

It is a Chen prime.

It is equal to p_6906902 and since 121214579 and 6906902 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (121214179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60607289 + 60607290.

It is an arithmetic number, because the mean of its divisors is an integer number (60607290).

Almost surely, 2^121214579 is an apocalyptic number.

121214579 is a deficient number, since it is larger than the sum of its proper divisors (1).

121214579 is an equidigital number, since it uses as much as digits as its factorization.

121214579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 32.

The square root of 121214579 is about 11009.7492705329. The cubic root of 121214579 is about 494.9009481090.

The spelling of 121214579 in words is "one hundred twenty-one million, two hundred fourteen thousand, five hundred seventy-nine".