122986859 has 2 divisors, whose sum is σ = 122986860. Its totient is φ = 122986858.

The previous prime is 122986849. The next prime is 122986901. The reversal of 122986859 is 958689221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122986859 is a prime.

It is a super-3 number, since 3×122986859³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122986849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61493429 + 61493430.

It is an arithmetic number, because the mean of its divisors is an integer number (61493430).

Almost surely, 2^122986859 is an apocalyptic number.

122986859 is a deficient number, since it is larger than the sum of its proper divisors (1).

122986859 is an equidigital number, since it uses as much as digits as its factorization.

122986859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 50.

The square root of 122986859 is about 11089.9440485514. The cubic root of 122986859 is about 497.3012719407.

It can be divided in two parts, 1229 and 86859, that added together give a palindrome (88088).

The spelling of 122986859 in words is "one hundred twenty-two million, nine hundred eighty-six thousand, eight hundred fifty-nine".