121832687 has 2 divisors, whose sum is σ = 121832688. Its totient is φ = 121832686.

The previous prime is 121832651. The next prime is 121832701. The reversal of 121832687 is 786238121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121832687 - 2¹² = 121828591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121832687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121832647) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60916343 + 60916344.

It is an arithmetic number, because the mean of its divisors is an integer number (60916344).

Almost surely, 2^121832687 is an apocalyptic number.

121832687 is a deficient number, since it is larger than the sum of its proper divisors (1).

121832687 is an equidigital number, since it uses as much as digits as its factorization.

121832687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 38.

The square root of 121832687 is about 11037.7845150193. The cubic root of 121832687 is about 495.7407363716.

The spelling of 121832687 in words is "one hundred twenty-one million, eight hundred thirty-two thousand, six hundred eighty-seven".