1142354185649 has 2 divisors, whose sum is σ = 1142354185650. Its totient is φ = 1142354185648.

The previous prime is 1142354185499. The next prime is 1142354185717. The reversal of 1142354185649 is 9465814532411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1058017960000 + 84336225649 = 1028600^2 + 290407^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142354185649 - 2¹⁶ = 1142354120113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1142354185649.

It is not a weakly prime, because it can be changed into another prime (1142354181649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571177092824 + 571177092825.

It is an arithmetic number, because the mean of its divisors is an integer number (571177092825).

Almost surely, 2^{1142354185649} is an apocalyptic number.

It is an amenable number.

1142354185649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142354185649 is an equidigital number, since it uses as much as digits as its factorization.

1142354185649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4147200, while the sum is 53.

The spelling of 1142354185649 in words is "one trillion, one hundred forty-two billion, three hundred fifty-four million, one hundred eighty-five thousand, six hundred forty-nine".