121847069 has 2 divisors, whose sum is σ = 121847070. Its totient is φ = 121847068.

The previous prime is 121847029. The next prime is 121847087. The reversal of 121847069 is 960748121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91431844 + 30415225 = 9562^2 + 5515^2 .

It is a cyclic number.

It is not a de Polignac number, because 121847069 - 2¹⁶ = 121781533 is a prime.

It is a super-2 number, since 2×121847069² = 29693416447781522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121847029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60923534 + 60923535.

It is an arithmetic number, because the mean of its divisors is an integer number (60923535).

Almost surely, 2^121847069 is an apocalyptic number.

It is an amenable number.

121847069 is a deficient number, since it is larger than the sum of its proper divisors (1).

121847069 is an equidigital number, since it uses as much as digits as its factorization.

121847069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 121847069 is about 11038.4359852291. The cubic root of 121847069 is about 495.7602425291.

The spelling of 121847069 in words is "one hundred twenty-one million, eight hundred forty-seven thousand, sixty-nine".