1153100243 has 4 divisors (see below), whose sum is σ = 1155449208. Its totient is φ = 1150751280.

The previous prime is 1153100237. The next prime is 1153100261. The reversal of 1153100243 is 3420013511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1153100243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1153100213) by changing a digit.

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, 1173746 + ... + 1174727.

It is an arithmetic number, because the mean of its divisors is an integer number (288862302).

Almost surely, 2^1153100243 is an apocalyptic number.

1153100243 is a deficient number, since it is larger than the sum of its proper divisors (2348965).

1153100243 is an equidigital number, since it uses as much as digits as its factorization.

1153100243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348964.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1153100243 is about 33957.3297389533. The cubic root of 1153100243 is about 1048.6301844072.

Adding to 1153100243 its reverse (3420013511), we get a palindrome (4573113754).

The spelling of 1153100243 in words is "one billion, one hundred fifty-three million, one hundred thousand, two hundred forty-three".