1163355225 has 12 divisors (see below), whose sum is σ = 1923414096. Its totient is φ = 620456080.

The previous prime is 1163355181. The next prime is 1163355301. The reversal of 1163355225 is 5225533611.

It is a happy number.

It is not a de Polignac number, because 1163355225 - 2¹⁰ = 1163354201 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7755627 + ... + 7755776.

It is an arithmetic number, because the mean of its divisors is an integer number (160284508).

Almost surely, 2^1163355225 is an apocalyptic number.

1163355225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1163355225 is a deficient number, since it is larger than the sum of its proper divisors (760058871).

1163355225 is a wasteful number, since it uses less digits than its factorization.

1163355225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15511416 (or 15511411 counting only the distinct ones).

The product of its digits is 27000, while the sum is 33.

The square root of 1163355225 is about 34107.9935645590. The cubic root of 1163355225 is about 1051.7296435601.

Adding to 1163355225 its reverse (5225533611), we get a palindrome (6388888836).

The spelling of 1163355225 in words is "one billion, one hundred sixty-three million, three hundred fifty-five thousand, two hundred twenty-five".