1104155243 has 4 divisors (see below), whose sum is σ = 1120635240. Its totient is φ = 1087675248.

The previous prime is 1104155209. The next prime is 1104155249. The reversal of 1104155243 is 3425514011.

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

It is a cyclic number.

It is not a de Polignac number, because 1104155243 - 2¹⁴ = 1104138859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1104155249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8239898 + ... + 8240031.

It is an arithmetic number, because the mean of its divisors is an integer number (280158810).

Almost surely, 2^1104155243 is an apocalyptic number.

1104155243 is a deficient number, since it is larger than the sum of its proper divisors (16479997).

1104155243 is an equidigital number, since it uses as much as digits as its factorization.

1104155243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16479996.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1104155243 is about 33228.8315021759. The cubic root of 1104155243 is about 1033.5782927295.

Adding to 1104155243 its reverse (3425514011), we get a palindrome (4529669254).

The spelling of 1104155243 in words is "one billion, one hundred four million, one hundred fifty-five thousand, two hundred forty-three".