1142025646397 has 2 divisors, whose sum is σ = 1142025646398. Its totient is φ = 1142025646396.

The previous prime is 1142025646393. The next prime is 1142025646427. The reversal of 1142025646397 is 7936465202411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1138860346276 + 3165300121 = 1067174^2 + 56261^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142025646397 - 2² = 1142025646393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142025646393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571012823198 + 571012823199.

It is an arithmetic number, because the mean of its divisors is an integer number (571012823199).

Almost surely, 2^{1142025646397} is an apocalyptic number.

It is an amenable number.

1142025646397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142025646397 is an equidigital number, since it uses as much as digits as its factorization.

1142025646397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 1142025646397 in words is "one trillion, one hundred forty-two billion, twenty-five million, six hundred forty-six thousand, three hundred ninety-seven".