1155345425 has 12 divisors (see below), whose sum is σ = 1542830940. Its totient is φ = 853177920.

The previous prime is 1155345403. The next prime is 1155345431. The reversal of 1155345425 is 5245435511.

It can be written as a sum of positive squares in 6 ways, for example, as 47720464 + 1107624961 = 6908^2 + 33281^2 .

It is not a de Polignac number, because 1155345425 - 2¹⁰ = 1155344401 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1777130 + ... + 1777779.

It is an arithmetic number, because the mean of its divisors is an integer number (128569245).

Almost surely, 2^1155345425 is an apocalyptic number.

It is an amenable number.

1155345425 is a deficient number, since it is larger than the sum of its proper divisors (387485515).

1155345425 is a wasteful number, since it uses less digits than its factorization.

1155345425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3554932 (or 3554927 counting only the distinct ones).

The product of its digits is 60000, while the sum is 35.

The square root of 1155345425 is about 33990.3725339985. The cubic root of 1155345425 is about 1049.3103332006.

The spelling of 1155345425 in words is "one billion, one hundred fifty-five million, three hundred forty-five thousand, four hundred twenty-five".