1542503043097 has 2 divisors, whose sum is σ = 1542503043098. Its totient is φ = 1542503043096.

The previous prime is 1542503043047. The next prime is 1542503043187. The reversal of 1542503043097 is 7903403052451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1058287470361 + 484215572736 = 1028731^2 + 695856^2 .

It is an emirp because it is prime and its reverse (7903403052451) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1542503043097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1542503043047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771251521548 + 771251521549.

It is an arithmetic number, because the mean of its divisors is an integer number (771251521549).

Almost surely, 2^{1542503043097} is an apocalyptic number.

It is an amenable number.

1542503043097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542503043097 is an equidigital number, since it uses as much as digits as its factorization.

1542503043097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 1542503043097 in words is "one trillion, five hundred forty-two billion, five hundred three million, forty-three thousand, ninety-seven".