121064857 has 2 divisors, whose sum is σ = 121064858. Its totient is φ = 121064856.

The previous prime is 121064849. The next prime is 121064863. The reversal of 121064857 is 758460121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67716441 + 53348416 = 8229^2 + 7304^2 .

It is a cyclic number.

It is not a de Polignac number, because 121064857 - 2³ = 121064849 is a prime.

It is not a weakly prime, because it can be changed into another prime (121064807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60532428 + 60532429.

It is an arithmetic number, because the mean of its divisors is an integer number (60532429).

Almost surely, 2^121064857 is an apocalyptic number.

It is an amenable number.

121064857 is a deficient number, since it is larger than the sum of its proper divisors (1).

121064857 is an equidigital number, since it uses as much as digits as its factorization.

121064857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 121064857 is about 11002.9476505162. The cubic root of 121064857 is about 494.6970999985.

The spelling of 121064857 in words is "one hundred twenty-one million, sixty-four thousand, eight hundred fifty-seven".