1153413985 has 4 divisors (see below), whose sum is σ = 1384096788. Its totient is φ = 922731184.

The previous prime is 1153413979. The next prime is 1153413991. The reversal of 1153413985 is 5893143511.

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

It is an interprime number because it is at equal distance from previous prime (1153413979) and next prime (1153413991).

It can be written as a sum of positive squares in 2 ways, for example, as 141919569 + 1011494416 = 11913^2 + 31804^2 .

It is a cyclic number.

It is not a de Polignac number, because 1153413985 - 2⁷ = 1153413857 is a prime.

It is a super-3 number, since 3×1153413985³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 115341394 + ... + 115341403.

It is an arithmetic number, because the mean of its divisors is an integer number (346024197).

Almost surely, 2^1153413985 is an apocalyptic number.

It is an amenable number.

1153413985 is a deficient number, since it is larger than the sum of its proper divisors (230682803).

1153413985 is an equidigital number, since it uses as much as digits as its factorization.

1153413985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230682802.

The product of its digits is 64800, while the sum is 40.

The square root of 1153413985 is about 33961.9490753991. The cubic root of 1153413985 is about 1048.7252815158.

The spelling of 1153413985 in words is "one billion, one hundred fifty-three million, four hundred thirteen thousand, nine hundred eighty-five".