121596487 has 2 divisors, whose sum is σ = 121596488. Its totient is φ = 121596486.

The previous prime is 121596479. The next prime is 121596493. The reversal of 121596487 is 784695121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121596487 - 2³ = 121596479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121596457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60798243 + 60798244.

It is an arithmetic number, because the mean of its divisors is an integer number (60798244).

Almost surely, 2^121596487 is an apocalyptic number.

121596487 is a deficient number, since it is larger than the sum of its proper divisors (1).

121596487 is an equidigital number, since it uses as much as digits as its factorization.

121596487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 43.

The square root of 121596487 is about 11027.0797131426. The cubic root of 121596487 is about 495.4201608966.

The spelling of 121596487 in words is "one hundred twenty-one million, five hundred ninety-six thousand, four hundred eighty-seven".