142632869 has 2 divisors, whose sum is σ = 142632870. Its totient is φ = 142632868.

The previous prime is 142632857. The next prime is 142632871. The reversal of 142632869 is 968236241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136002244 + 6630625 = 11662^2 + 2575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142632869 is a prime.

It is a super-2 number, since 2×142632869² = 40688270638342322, which contains 22 as substring.

Together with 142632871, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142632569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71316434 + 71316435.

It is an arithmetic number, because the mean of its divisors is an integer number (71316435).

Almost surely, 2^142632869 is an apocalyptic number.

It is an amenable number.

142632869 is a deficient number, since it is larger than the sum of its proper divisors (1).

142632869 is an equidigital number, since it uses as much as digits as its factorization.

142632869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 41.

The square root of 142632869 is about 11942.9003596279. The cubic root of 142632869 is about 522.4842530911.

The spelling of 142632869 in words is "one hundred forty-two million, six hundred thirty-two thousand, eight hundred sixty-nine".