142261647839 has 2 divisors, whose sum is σ = 142261647840. Its totient is φ = 142261647838.

The previous prime is 142261647833. The next prime is 142261647863. The reversal of 142261647839 is 938746162241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142261647839 - 2¹² = 142261643743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142261647833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71130823919 + 71130823920.

It is an arithmetic number, because the mean of its divisors is an integer number (71130823920).

Almost surely, 2^142261647839 is an apocalyptic number.

142261647839 is a deficient number, since it is larger than the sum of its proper divisors (1).

142261647839 is an equidigital number, since it uses as much as digits as its factorization.

142261647839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 53.

The spelling of 142261647839 in words is "one hundred forty-two billion, two hundred sixty-one million, six hundred forty-seven thousand, eight hundred thirty-nine".