1163688245 has 4 divisors (see below), whose sum is σ = 1396425900. Its totient is φ = 930950592.

The previous prime is 1163688241. The next prime is 1163688247. The reversal of 1163688245 is 5428863611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5428863611 = 193 ⋅28128827.

It can be written as a sum of positive squares in 2 ways, for example, as 869188324 + 294499921 = 29482^2 + 17161^2 .

It is a cyclic number.

It is not a de Polignac number, because 1163688245 - 2² = 1163688241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1163688196 and 1163688205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163688241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116368820 + ... + 116368829.

It is an arithmetic number, because the mean of its divisors is an integer number (349106475).

Almost surely, 2^1163688245 is an apocalyptic number.

It is an amenable number.

1163688245 is a deficient number, since it is larger than the sum of its proper divisors (232737655).

1163688245 is an equidigital number, since it uses as much as digits as its factorization.

1163688245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232737654.

The product of its digits is 276480, while the sum is 44.

The square root of 1163688245 is about 34112.8750620642. The cubic root of 1163688245 is about 1051.8299894055.

The spelling of 1163688245 in words is "one billion, one hundred sixty-three million, six hundred eighty-eight thousand, two hundred forty-five".