1155181825 has 12 divisors (see below), whose sum is σ = 1637057920. Its totient is φ = 792124560.

The previous prime is 1155181813. The next prime is 1155181849. The reversal of 1155181825 is 5281815511.

It is not a de Polignac number, because 1155181825 - 2⁷ = 1155181697 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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, 3300345 + ... + 3300694.

Almost surely, 2^1155181825 is an apocalyptic number.

It is an amenable number.

1155181825 is a deficient number, since it is larger than the sum of its proper divisors (481876095).

1155181825 is an equidigital number, since it uses as much as digits as its factorization.

1155181825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6601056 (or 6601051 counting only the distinct ones).

The product of its digits is 16000, while the sum is 37.

The square root of 1155181825 is about 33987.9658850011. The cubic root of 1155181825 is about 1049.2608024801.

The spelling of 1155181825 in words is "one billion, one hundred fifty-five million, one hundred eighty-one thousand, eight hundred twenty-five".