142587812947 has 2 divisors, whose sum is σ = 142587812948. Its totient is φ = 142587812946.

The previous prime is 142587812879. The next prime is 142587812951. The reversal of 142587812947 is 749218785241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142587812947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142587812891 and 142587812900.

It is not a weakly prime, because it can be changed into another prime (142587812977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71293906473 + 71293906474.

It is an arithmetic number, because the mean of its divisors is an integer number (71293906474).

Almost surely, 2^142587812947 is an apocalyptic number.

142587812947 is a deficient number, since it is larger than the sum of its proper divisors (1).

142587812947 is an equidigital number, since it uses as much as digits as its factorization.

142587812947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9031680, while the sum is 58.

The spelling of 142587812947 in words is "one hundred forty-two billion, five hundred eighty-seven million, eight hundred twelve thousand, nine hundred forty-seven".