1152216578 has 4 divisors (see below), whose sum is σ = 1728324870. Its totient is φ = 576108288.

The previous prime is 1152216551. The next prime is 1152216619. The reversal of 1152216578 is 8756122511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1056705049 + 95511529 = 32507^2 + 9773^2 .

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 as a sum of consecutive naturals, namely, 288054143 + ... + 288054146.

Almost surely, 2^1152216578 is an apocalyptic number.

1152216578 is a deficient number, since it is larger than the sum of its proper divisors (576108292).

1152216578 is an equidigital number, since it uses as much as digits as its factorization.

1152216578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576108291.

The product of its digits is 33600, while the sum is 38.

The square root of 1152216578 is about 33944.3158422732. The cubic root of 1152216578 is about 1048.3622474247.

The spelling of 1152216578 in words is "one billion, one hundred fifty-two million, two hundred sixteen thousand, five hundred seventy-eight".