1151808445 has 8 divisors (see below), whose sum is σ = 1382480640. Its totient is φ = 921239760.

The previous prime is 1151808439. The next prime is 1151808479. The reversal of 1151808445 is 5448081511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1151808445 - 2¹³ = 1151800253 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1180 + ... + 48010.

It is an arithmetic number, because the mean of its divisors is an integer number (172810080).

Almost surely, 2^1151808445 is an apocalyptic number.

It is an amenable number.

1151808445 is a deficient number, since it is larger than the sum of its proper divisors (230672195).

1151808445 is an equidigital number, since it uses as much as digits as its factorization.

1151808445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51755.

The product of its (nonzero) digits is 25600, while the sum is 37.

The square root of 1151808445 is about 33938.3035079834. The cubic root of 1151808445 is about 1048.2384507454.

Adding to 1151808445 its reverse (5448081511), we get a palindrome (6599889956).

The spelling of 1151808445 in words is "one billion, one hundred fifty-one million, eight hundred eight thousand, four hundred forty-five".