1115164653 has 4 divisors (see below), whose sum is σ = 1486886208. Its totient is φ = 743443100.

The previous prime is 1115164649. The next prime is 1115164681. The reversal of 1115164653 is 3564615111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1115164653 - 2² = 1115164649 is a prime.

It is a super-2 number, since 2×1115164653² = 2487184406601220818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115164693) 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, 185860773 + ... + 185860778.

It is an arithmetic number, because the mean of its divisors is an integer number (371721552).

Almost surely, 2^1115164653 is an apocalyptic number.

It is an amenable number.

1115164653 is a deficient number, since it is larger than the sum of its proper divisors (371721555).

1115164653 is an equidigital number, since it uses as much as digits as its factorization.

1115164653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371721554.

The product of its digits is 10800, while the sum is 33.

The square root of 1115164653 is about 33394.0811072861. The cubic root of 1115164653 is about 1037.0021697933.

Adding to 1115164653 its reverse (3564615111), we get a palindrome (4679779764).

The spelling of 1115164653 in words is "one billion, one hundred fifteen million, one hundred sixty-four thousand, six hundred fifty-three".