121497601 has 2 divisors, whose sum is σ = 121497602. Its totient is φ = 121497600.

The previous prime is 121497581. The next prime is 121497619. The reversal of 121497601 is 106794121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74218225 + 47279376 = 8615^2 + 6876^2 .

It is a cyclic number.

It is not a de Polignac number, because 121497601 - 2¹¹ = 121495553 is a prime.

It is not a weakly prime, because it can be changed into another prime (121497631) 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, 60748800 + 60748801.

It is an arithmetic number, because the mean of its divisors is an integer number (60748801).

Almost surely, 2^121497601 is an apocalyptic number.

It is an amenable number.

121497601 is a deficient number, since it is larger than the sum of its proper divisors (1).

121497601 is an equidigital number, since it uses as much as digits as its factorization.

121497601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 121497601 is about 11022.5950211373. The cubic root of 121497601 is about 495.2858275088.

The spelling of 121497601 in words is "one hundred twenty-one million, four hundred ninety-seven thousand, six hundred one".