121024457 has 2 divisors, whose sum is σ = 121024458. Its totient is φ = 121024456.

The previous prime is 121024441. The next prime is 121024487. The reversal of 121024457 is 754420121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72318016 + 48706441 = 8504^2 + 6979^2 .

It is a cyclic number.

It is not a de Polignac number, because 121024457 - 2⁴ = 121024441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121024487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60512228 + 60512229.

It is an arithmetic number, because the mean of its divisors is an integer number (60512229).

Almost surely, 2^121024457 is an apocalyptic number.

It is an amenable number.

121024457 is a deficient number, since it is larger than the sum of its proper divisors (1).

121024457 is an equidigital number, since it uses as much as digits as its factorization.

121024457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 121024457 is about 11001.1116256495. Note that the first 3 decimals coincide. The cubic root of 121024457 is about 494.6420661738.

Adding to 121024457 its reverse (754420121), we get a palindrome (875444578).

The spelling of 121024457 in words is "one hundred twenty-one million, twenty-four thousand, four hundred fifty-seven".