1143440115197 has 2 divisors, whose sum is σ = 1143440115198. Its totient is φ = 1143440115196.

The previous prime is 1143440115193. The next prime is 1143440115221. The reversal of 1143440115197 is 7915110443411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 760513061476 + 382927053721 = 872074^2 + 618811^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143440115197 - 2² = 1143440115193 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143440115193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571720057598 + 571720057599.

It is an arithmetic number, because the mean of its divisors is an integer number (571720057599).

Almost surely, 2^{1143440115197} is an apocalyptic number.

It is an amenable number.

1143440115197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143440115197 is an equidigital number, since it uses as much as digits as its factorization.

1143440115197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 41.

The spelling of 1143440115197 in words is "one trillion, one hundred forty-three billion, four hundred forty million, one hundred fifteen thousand, one hundred ninety-seven".