1155425441 has 2 divisors, whose sum is σ = 1155425442. Its totient is φ = 1155425440.

The previous prime is 1155425431. The next prime is 1155425477. The reversal of 1155425441 is 1445245511.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1069028416 + 86397025 = 32696^2 + 9295^2 .

It is an emirp because it is prime and its reverse (1445245511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1155425441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1155425398 and 1155425407.

It is not a weakly prime, because it can be changed into another prime (1155425431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577712720 + 577712721.

It is an arithmetic number, because the mean of its divisors is an integer number (577712721).

Almost surely, 2^1155425441 is an apocalyptic number.

It is an amenable number.

1155425441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155425441 is an equidigital number, since it uses as much as digits as its factorization.

1155425441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16000, while the sum is 32.

The square root of 1155425441 is about 33991.5495527933. The cubic root of 1155425441 is about 1049.3345567432.

The spelling of 1155425441 in words is "one billion, one hundred fifty-five million, four hundred twenty-five thousand, four hundred forty-one".