1142971269149 has 2 divisors, whose sum is σ = 1142971269150. Its totient is φ = 1142971269148.

The previous prime is 1142971269073. The next prime is 1142971269151. The reversal of 1142971269149 is 9419621792411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 673310508025 + 469660761124 = 820555^2 + 685318^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142971269149 - 2¹⁶ = 1142971203613 is a prime.

Together with 1142971269151, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1142971269094 and 1142971269103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142971269749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571485634574 + 571485634575.

It is an arithmetic number, because the mean of its divisors is an integer number (571485634575).

Almost surely, 2^{1142971269149} is an apocalyptic number.

It is an amenable number.

1142971269149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142971269149 is an equidigital number, since it uses as much as digits as its factorization.

1142971269149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 56.

The spelling of 1142971269149 in words is "one trillion, one hundred forty-two billion, nine hundred seventy-one million, two hundred sixty-nine thousand, one hundred forty-nine".