1125435617429 has 2 divisors, whose sum is σ = 1125435617430. Its totient is φ = 1125435617428.

The previous prime is 1125435617407. The next prime is 1125435617437. The reversal of 1125435617429 is 9247165345211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1054667380900 + 70768236529 = 1026970^2 + 266023^2 .

It is an emirp because it is prime and its reverse (9247165345211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1125435617429 - 2³⁶ = 1056716140693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125435617459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562717808714 + 562717808715.

It is an arithmetic number, because the mean of its divisors is an integer number (562717808715).

Almost surely, 2^{1125435617429} is an apocalyptic number.

It is an amenable number.

1125435617429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125435617429 is an equidigital number, since it uses as much as digits as its factorization.

1125435617429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 50.

The spelling of 1125435617429 in words is "one trillion, one hundred twenty-five billion, four hundred thirty-five million, six hundred seventeen thousand, four hundred twenty-nine".