1163130345 has 24 divisors (see below), whose sum is σ = 2171177736. Its totient is φ = 572617728.

The previous prime is 1163130341. The next prime is 1163130379. The reversal of 1163130345 is 5430313611.

1163130345 is a `hidden beast` number, since 1 + 1 + 6 + 313 + 0 + 345 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 70761744 + 1092368601 = 8412^2 + 33051^2 .

It is not a de Polignac number, because 1163130345 - 2² = 1163130341 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1163130341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 993544 + ... + 994713.

It is an arithmetic number, because the mean of its divisors is an integer number (90465739).

Almost surely, 2^1163130345 is an apocalyptic number.

1163130345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1163130345 is a deficient number, since it is larger than the sum of its proper divisors (1008047391).

1163130345 is a wasteful number, since it uses less digits than its factorization.

1163130345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988281 (or 1988278 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 1163130345 is about 34104.6968173007. The cubic root of 1163130345 is about 1051.6618717112.

Adding to 1163130345 its reverse (5430313611), we get a palindrome (6593443956).

The spelling of 1163130345 in words is "one billion, one hundred sixty-three million, one hundred thirty thousand, three hundred forty-five".