121387459 has 2 divisors, whose sum is σ = 121387460. Its totient is φ = 121387458.

The previous prime is 121387439. The next prime is 121387471. The reversal of 121387459 is 954783121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121387459 - 2¹³ = 121379267 is a prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (121387439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60693729 + 60693730.

It is an arithmetic number, because the mean of its divisors is an integer number (60693730).

Almost surely, 2^121387459 is an apocalyptic number.

121387459 is a deficient number, since it is larger than the sum of its proper divisors (1).

121387459 is an equidigital number, since it uses as much as digits as its factorization.

121387459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 40.

The square root of 121387459 is about 11017.5976964128. The cubic root of 121387459 is about 495.1361173805.

The spelling of 121387459 in words is "one hundred twenty-one million, three hundred eighty-seven thousand, four hundred fifty-nine".