142143234140249 has 2 divisors, whose sum is σ = 142143234140250. Its totient is φ = 142143234140248.

The previous prime is 142143234140207. The next prime is 142143234140293. The reversal of 142143234140249 is 942041432341241.

It is an a-pointer prime, because the next prime (142143234140293) can be obtained adding 142143234140249 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., 140822959603225 + 1320274537024 = 11866885^2 + 1149032^2 .

It is a cyclic number.

It is not a de Polignac number, because 142143234140249 - 2²⁴ = 142143217363033 is a prime.

It is not a weakly prime, because it can be changed into another prime (142143234140849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71071617070124 + 71071617070125.

It is an arithmetic number, because the mean of its divisors is an integer number (71071617070125).

Almost surely, 2^{142143234140249} is an apocalyptic number.

It is an amenable number.

142143234140249 is a deficient number, since it is larger than the sum of its proper divisors (1).

142143234140249 is an equidigital number, since it uses as much as digits as its factorization.

142143234140249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 44.

The spelling of 142143234140249 in words is "one hundred forty-two trillion, one hundred forty-three billion, two hundred thirty-four million, one hundred forty thousand, two hundred forty-nine".