121145459 has 2 divisors, whose sum is σ = 121145460. Its totient is φ = 121145458.

The previous prime is 121145449. The next prime is 121145483. The reversal of 121145459 is 954541121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121145459 - 2⁴ = 121145443 is a prime.

It is a super-3 number, since 3×121145459³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121145449) 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 as a sum of consecutive naturals, namely, 60572729 + 60572730.

It is an arithmetic number, because the mean of its divisors is an integer number (60572730).

Almost surely, 2^121145459 is an apocalyptic number.

121145459 is a deficient number, since it is larger than the sum of its proper divisors (1).

121145459 is an equidigital number, since it uses as much as digits as its factorization.

121145459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 32.

The square root of 121145459 is about 11006.6097868508. The cubic root of 121145459 is about 494.8068613583.

The spelling of 121145459 in words is "one hundred twenty-one million, one hundred forty-five thousand, four hundred fifty-nine".