1115642698 has 4 divisors (see below), whose sum is σ = 1673464050. Its totient is φ = 557821348.

The previous prime is 1115642683. The next prime is 1115642701. The reversal of 1115642698 is 8962465111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8962465111 = 20639 ⋅434249.

It can be written as a sum of positive squares in only one way, i.e., 1101376969 + 14265729 = 33187^2 + 3777^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278910673 + ... + 278910676.

Almost surely, 2^1115642698 is an apocalyptic number.

1115642698 is a deficient number, since it is larger than the sum of its proper divisors (557821352).

1115642698 is an equidigital number, since it uses as much as digits as its factorization.

1115642698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557821351.

The product of its digits is 103680, while the sum is 43.

The square root of 1115642698 is about 33401.2379710693. The cubic root of 1115642698 is about 1037.1503281486.

The spelling of 1115642698 in words is "one billion, one hundred fifteen million, six hundred forty-two thousand, six hundred ninety-eight".