142144132849 has 2 divisors, whose sum is σ = 142144132850. Its totient is φ = 142144132848.

The previous prime is 142144132783. The next prime is 142144132861. The reversal of 142144132849 is 948231441241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106574172849 + 35569960000 = 326457^2 + 188600^2 .

It is a cyclic number.

It is not a de Polignac number, because 142144132849 - 2²¹ = 142142035697 is a prime.

It is not a weakly prime, because it can be changed into another prime (142144192849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71072066424 + 71072066425.

It is an arithmetic number, because the mean of its divisors is an integer number (71072066425).

Almost surely, 2^142144132849 is an apocalyptic number.

It is an amenable number.

142144132849 is a deficient number, since it is larger than the sum of its proper divisors (1).

142144132849 is an equidigital number, since it uses as much as digits as its factorization.

142144132849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221184, while the sum is 43.

The spelling of 142144132849 in words is "one hundred forty-two billion, one hundred forty-four million, one hundred thirty-two thousand, eight hundred forty-nine".