142833869 has 2 divisors, whose sum is σ = 142833870. Its totient is φ = 142833868.

The previous prime is 142833863. The next prime is 142833913. The reversal of 142833869 is 968338241.

It is an a-pointer prime, because the next prime (142833913) can be obtained adding 142833869 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110775625 + 32058244 = 10525^2 + 5662^2 .

It is a cyclic number.

It is not a de Polignac number, because 142833869 - 2¹⁶ = 142768333 is a prime.

It is a super-2 number, since 2×142833869² = 40803028267018322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142833863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71416934 + 71416935.

It is an arithmetic number, because the mean of its divisors is an integer number (71416935).

Almost surely, 2^142833869 is an apocalyptic number.

It is an amenable number.

142833869 is a deficient number, since it is larger than the sum of its proper divisors (1).

142833869 is an equidigital number, since it uses as much as digits as its factorization.

142833869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 44.

The square root of 142833869 is about 11951.3124383894. The cubic root of 142833869 is about 522.7295683135.

The spelling of 142833869 in words is "one hundred forty-two million, eight hundred thirty-three thousand, eight hundred sixty-nine".