1163653245 has 12 divisors (see below), whose sum is σ = 2016999036. Its totient is φ = 620615040.

The previous prime is 1163653241. The next prime is 1163653259. The reversal of 1163653245 is 5423563611.

1163653245 is a `hidden beast` number, since 11 + 636 + 5 + 3 + 2 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 221592996 + 942060249 = 14886^2 + 30693^2 .

It is not a de Polignac number, because 1163653245 - 2² = 1163653241 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163653241) 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, 12929436 + ... + 12929525.

It is an arithmetic number, because the mean of its divisors is an integer number (168083253).

Almost surely, 2^1163653245 is an apocalyptic number.

1163653245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1163653245 is a deficient number, since it is larger than the sum of its proper divisors (853345791).

1163653245 is a wasteful number, since it uses less digits than its factorization.

1163653245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25858972 (or 25858969 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 1163653245 is about 34112.3620554191. The cubic root of 1163653245 is about 1051.8194440787.

The spelling of 1163653245 in words is "one billion, one hundred sixty-three million, six hundred fifty-three thousand, two hundred forty-five".