1042254555197 has 2 divisors, whose sum is σ = 1042254555198. Its totient is φ = 1042254555196.

The previous prime is 1042254555053. The next prime is 1042254555203. The reversal of 1042254555197 is 7915554522401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 736062759481 + 306191795716 = 857941^2 + 553346^2 .

It is an emirp because it is prime and its reverse (7915554522401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1042254555197 - 2¹² = 1042254551101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042254555697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521127277598 + 521127277599.

It is an arithmetic number, because the mean of its divisors is an integer number (521127277599).

Almost surely, 2^{1042254555197} is an apocalyptic number.

It is an amenable number.

1042254555197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042254555197 is an equidigital number, since it uses as much as digits as its factorization.

1042254555197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520000, while the sum is 50.

The spelling of 1042254555197 in words is "one trillion, forty-two billion, two hundred fifty-four million, five hundred fifty-five thousand, one hundred ninety-seven".