1163652785 has 4 divisors (see below), whose sum is σ = 1396383348. Its totient is φ = 930922224.

The previous prime is 1163652781. The next prime is 1163652821. The reversal of 1163652785 is 5872563611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5872563611 = 53 ⋅110803087.

It can be written as a sum of positive squares in 2 ways, for example, as 322130704 + 841522081 = 17948^2 + 29009^2 .

It is a cyclic number.

It is not a de Polignac number, because 1163652785 - 2² = 1163652781 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1163652781) 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, 116365274 + ... + 116365283.

It is an arithmetic number, because the mean of its divisors is an integer number (349095837).

Almost surely, 2^1163652785 is an apocalyptic number.

It is an amenable number.

1163652785 is a deficient number, since it is larger than the sum of its proper divisors (232730563).

1163652785 is an equidigital number, since it uses as much as digits as its factorization.

1163652785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232730562.

The product of its digits is 302400, while the sum is 44.

The square root of 1163652785 is about 34112.3553129947. The cubic root of 1163652785 is about 1051.8193054815.

The spelling of 1163652785 in words is "one billion, one hundred sixty-three million, six hundred fifty-two thousand, seven hundred eighty-five".