1155134243425 has 48 divisors (see below), whose sum is σ = 1523338928640. Its totient is φ = 866969143040.

The previous prime is 1155134243399. The next prime is 1155134243437. The reversal of 1155134243425 is 5243424315511.

It is not a de Polignac number, because 1155134243425 - 2⁷ = 1155134243297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 183730632 + ... + 183736918.

It is an arithmetic number, because the mean of its divisors is an integer number (31736227680).

Almost surely, 2^{1155134243425} is an apocalyptic number.

It is an amenable number.

1155134243425 is a deficient number, since it is larger than the sum of its proper divisors (368204685215).

1155134243425 is a wasteful number, since it uses less digits than its factorization.

1155134243425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12402 (or 12397 counting only the distinct ones).

The product of its digits is 288000, while the sum is 40.

Adding to 1155134243425 its reverse (5243424315511), we get a palindrome (6398558558936).

The spelling of 1155134243425 in words is "one trillion, one hundred fifty-five billion, one hundred thirty-four million, two hundred forty-three thousand, four hundred twenty-five".