1153515223 has 12 divisors (see below), whose sum is σ = 1388116440. Its totient is φ = 954632112.

The previous prime is 1153515221. The next prime is 1153515227. The reversal of 1153515223 is 3225153511.

It is not a de Polignac number, because 1153515223 - 2¹ = 1153515221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1153515191 and 1153515200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153515221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404461 + ... + 407302.

It is an arithmetic number, because the mean of its divisors is an integer number (115676370).

Almost surely, 2^1153515223 is an apocalyptic number.

1153515223 is a deficient number, since it is larger than the sum of its proper divisors (234601217).

1153515223 is an equidigital number, since it uses as much as digits as its factorization.

1153515223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811806 (or 811799 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 1153515223 is about 33963.4395048558. The cubic root of 1153515223 is about 1048.7559636893.

Adding to 1153515223 its reverse (3225153511), we get a palindrome (4378668734).

The spelling of 1153515223 in words is "one billion, one hundred fifty-three million, five hundred fifteen thousand, two hundred twenty-three".