121814807 has 2 divisors, whose sum is σ = 121814808. Its totient is φ = 121814806.

The previous prime is 121814689. The next prime is 121814821. The reversal of 121814807 is 708418121.

It is a strong prime.

It is an emirp because it is prime and its reverse (708418121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121814807 - 2⁸ = 121814551 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121814857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60907403 + 60907404.

It is an arithmetic number, because the mean of its divisors is an integer number (60907404).

Almost surely, 2^121814807 is an apocalyptic number.

121814807 is a deficient number, since it is larger than the sum of its proper divisors (1).

121814807 is an equidigital number, since it uses as much as digits as its factorization.

121814807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 32.

The square root of 121814807 is about 11036.9745401537. The cubic root of 121814807 is about 495.7164837723.

The spelling of 121814807 in words is "one hundred twenty-one million, eight hundred fourteen thousand, eight hundred seven".