1140729516461 has 2 divisors, whose sum is σ = 1140729516462. Its totient is φ = 1140729516460.

The previous prime is 1140729516413. The next prime is 1140729516463. The reversal of 1140729516461 is 1646159270411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1043117011561 + 97612504900 = 1021331^2 + 312430^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140729516461 - 2¹⁰ = 1140729515437 is a prime.

Together with 1140729516463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140729516463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570364758230 + 570364758231.

It is an arithmetic number, because the mean of its divisors is an integer number (570364758231).

Almost surely, 2^{1140729516461} is an apocalyptic number.

It is an amenable number.

1140729516461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140729516461 is an equidigital number, since it uses as much as digits as its factorization.

1140729516461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 1140729516461 in words is "one trillion, one hundred forty billion, seven hundred twenty-nine million, five hundred sixteen thousand, four hundred sixty-one".