142859898169 has 2 divisors, whose sum is σ = 142859898170. Its totient is φ = 142859898168.

The previous prime is 142859898131. The next prime is 142859898179. The reversal of 142859898169 is 961898958241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100108960000 + 42750938169 = 316400^2 + 206763^2 .

It is a cyclic number.

It is not a de Polignac number, because 142859898169 - 2¹⁷ = 142859767097 is a prime.

It is a super-2 number, since 2×142859898169² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142859898098 and 142859898107.

It is not a weakly prime, because it can be changed into another prime (142859898109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71429949084 + 71429949085.

It is an arithmetic number, because the mean of its divisors is an integer number (71429949085).

Almost surely, 2^142859898169 is an apocalyptic number.

It is an amenable number.

142859898169 is a deficient number, since it is larger than the sum of its proper divisors (1).

142859898169 is an equidigital number, since it uses as much as digits as its factorization.

142859898169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 89579520, while the sum is 70.

The spelling of 142859898169 in words is "one hundred forty-two billion, eight hundred fifty-nine million, eight hundred ninety-eight thousand, one hundred sixty-nine".