1115604641 has 2 divisors, whose sum is σ = 1115604642. Its totient is φ = 1115604640.

The previous prime is 1115604619. The next prime is 1115604647. The reversal of 1115604641 is 1464065111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 964413025 + 151191616 = 31055^2 + 12296^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115604641 - 2³⁰ = 41862817 is a prime.

It is not a weakly prime, because it can be changed into another prime (1115604647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557802320 + 557802321.

It is an arithmetic number, because the mean of its divisors is an integer number (557802321).

Almost surely, 2^1115604641 is an apocalyptic number.

It is an amenable number.

1115604641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115604641 is an equidigital number, since it uses as much as digits as its factorization.

1115604641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1115604641 is about 33400.6682717577. The cubic root of 1115604641 is about 1037.1385348630.

Adding to 1115604641 its reverse (1464065111), we get a palindrome (2579669752).

The spelling of 1115604641 in words is "one billion, one hundred fifteen million, six hundred four thousand, six hundred forty-one".