121454657 has 2 divisors, whose sum is σ = 121454658. Its totient is φ = 121454656.

The previous prime is 121454617. The next prime is 121454677. The reversal of 121454657 is 756454121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120472576 + 982081 = 10976^2 + 991^2 .

It is a cyclic number.

It is not a de Polignac number, because 121454657 - 2¹² = 121450561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121454617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60727328 + 60727329.

It is an arithmetic number, because the mean of its divisors is an integer number (60727329).

Almost surely, 2^121454657 is an apocalyptic number.

It is an amenable number.

121454657 is a deficient number, since it is larger than the sum of its proper divisors (1).

121454657 is an equidigital number, since it uses as much as digits as its factorization.

121454657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33600, while the sum is 35.

The square root of 121454657 is about 11020.6468503441. The cubic root of 121454657 is about 495.2274667927.

The spelling of 121454657 in words is "one hundred twenty-one million, four hundred fifty-four thousand, six hundred fifty-seven".