122559487 has 2 divisors, whose sum is σ = 122559488. Its totient is φ = 122559486.

The previous prime is 122559469. The next prime is 122559509. The reversal of 122559487 is 784955221.

It is a weak prime.

It is an emirp because it is prime and its reverse (784955221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122559487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122559427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61279743 + 61279744.

It is an arithmetic number, because the mean of its divisors is an integer number (61279744).

Almost surely, 2^122559487 is an apocalyptic number.

122559487 is a deficient number, since it is larger than the sum of its proper divisors (1).

122559487 is an equidigital number, since it uses as much as digits as its factorization.

122559487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 43.

The square root of 122559487 is about 11070.6588331499. The cubic root of 122559487 is about 496.7245726719.

The spelling of 122559487 in words is "one hundred twenty-two million, five hundred fifty-nine thousand, four hundred eighty-seven".