121247593 has 2 divisors, whose sum is σ = 121247594. Its totient is φ = 121247592.

The previous prime is 121247591. The next prime is 121247629. The reversal of 121247593 is 395742121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106440489 + 14807104 = 10317^2 + 3848^2 .

It is a cyclic number.

It is not a de Polignac number, because 121247593 - 2¹ = 121247591 is a prime.

Together with 121247591, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (121247591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60623796 + 60623797.

It is an arithmetic number, because the mean of its divisors is an integer number (60623797).

Almost surely, 2^121247593 is an apocalyptic number.

It is an amenable number.

121247593 is a deficient number, since it is larger than the sum of its proper divisors (1).

121247593 is an equidigital number, since it uses as much as digits as its factorization.

121247593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 121247593 is about 11011.2484759904. The cubic root of 121247593 is about 494.9458744342.

The spelling of 121247593 in words is "one hundred twenty-one million, two hundred forty-seven thousand, five hundred ninety-three".