1155230005 has 8 divisors (see below), whose sum is σ = 1386475992. Its totient is φ = 924050688.

The previous prime is 1155230003. The next prime is 1155230047. The reversal of 1155230005 is 5000325511.

It can be written as a sum of positive squares in 4 ways, for example, as 253669329 + 901560676 = 15927^2 + 30026^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1155230005 - 2¹ = 1155230003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155230003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37417 + ... + 60913.

It is an arithmetic number, because the mean of its divisors is an integer number (173309499).

Almost surely, 2^1155230005 is an apocalyptic number.

It is an amenable number.

1155230005 is a deficient number, since it is larger than the sum of its proper divisors (231245987).

1155230005 is an equidigital number, since it uses as much as digits as its factorization.

1155230005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33335.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 1155230005 is about 33988.6746578916. The cubic root of 1155230005 is about 1049.2753897026.

Adding to 1155230005 its reverse (5000325511), we get a palindrome (6155555516).

The spelling of 1155230005 in words is "one billion, one hundred fifty-five million, two hundred thirty thousand, five".